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BUCKS COUNTY, Pa. — Federal investigators raided a storage facility as part of the probe into two suburban Pennsylvania teens accused of carrying out an ISIS-inspired terror attack by allegedly throwing improvised explosive devices outside the New York City mayor’s home.
The suspects, 18-year-old Emir Balat of Langhorne and 19-year-old Ibrahim Kayumi of Newtown, traveled from Bucks County to Manhattan on Saturday, where police said they ignited and hurled explosive devices into a protest crowd outside Mayor Zohran Mamdani’s residence.
On Monday evening, a federal source confirmed to Fox News that a search warrant was executed at a self-storage facility called Public Storage in Langhorne. The source said that the search is in connection to the ongoing terror investigation. Helicopter video captured authorities at the large storage facility on Monday.
A federal source confirmed to Fox News that federal authorities raided a storage facility in Pennsylvania in connection to the investigation into the teens accused of an ISIS-inspired bomb throwing attack in NYC. (Greg Wehner for Fox News Digital)
The suspect, identified as Emir Balat, was seen holding the alleged bomb in front of Gracie's Mansion in New York City. (United States District Court for the Southern District of New York)
A series of photographs captures the critical moments of an alleged ISIS-inspired bombing attempt outside the iconic Gracie Mansion.
One of the Pennsylvania suspects allegedly involved in an ISIS-inspired terror attack outside the New York City mayor’s residence is seen during the protest prior to his arrest. (United States District Court for the Southern District of New York)
The first image shows Balat holding what authorities later identified as Device-1 during the protest outside Gracie Mansion and then proceeding to throw it into the crowd of protesters and counterprotesters during the "Stop the Islamic Takeover of New York City" rally. According to the complaint, the device was approximately the size of a mason jar and had an attached fuse. Investigators later determined that it contained TATP and had nuts and bolts affixed to the exterior with duct tape.
Emir Balat and Ibrahim Kayumi, charged in the Southern District of New York, are seen near the mayor’s residence before allegedly deploying improvised explosive devices. (United States District Court for the Southern District of New York)
In a second photo, Balat is shown receiving Device-2 from Ibrahim Kayumi after the first device was allegedly thrown, authorities say. According to the complaint, Balat allegedly ran down the block and grabbed the second device from Kayumi before igniting it. Prosecutors allege he then dropped Device-2 near several NYPD officers.
The suspect appears to run away after he allegedly threw the explosive. (United States District Court for the Southern District of New York)
Another image shows Balat running from the area after Device-2 was dropped near several NYPD officers. According to the complaint, after he allegedly ignited the second device, he dropped it near the officers, ran away, and jumped over a barricade. The photograph captures Balat mid-flight as officers move toward the device, moments before he was tackled and arrested.
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As federal prosecutors unsealed charges Monday, Kayumi’s father said he had no warning.
"If he’s going to be five minutes late, he calls," Khayer Kayumi told The New York Times, describing how the family began searching for his son when he didn’t return home Saturday afternoon. "We didn’t know what was going on."
A man is arrested after allegedly throwing a handmade smoke grenade during a "Stop the Islamic Takeover of New York City" protest on March 7, 2026. (Ryan Murphy/Getty Images)
According to the federal criminal complaint, Kayumi’s mother filed a missing person report just hours before the alleged attack. The report states she last saw him at their Pennsylvania residence at approximately 10:30 a.m. that morning.
A neighbor of Ibrahim Kayumi in Newtown confirmed to Fox News Digital that she lives next door to the family but declined to comment further. She said she did not wish to speak about Kayumi.
Violeta Sadauskiene, a neighbor of terror suspect Emir Balat, said she has known the Balat family for about 15 years, describing the family as "lovely people."
"There was zero suspicious stuff going on at their house," she told Phillyburbs.com. "Everybody was just in shock. Everyone. I could not believe it when I heard it. We thought it must be a mistake."
Sadauskiene told the outlet that Balat's parents were friendly and hardworking.
Balat is currently a 12th-grade student in the Neshaminy School District, a district spokesperson confirmed to Fox News Digital. The district declined to comment on whether he had any prior disciplinary history. Kayumi graduated in 2024 from Council Rock High School North, school officials confirmed.
In a message to families, Council Rock officials said they have been in communication with law enforcement and that there is no information indicating any threat or connection to the school district. Schools remain open and operating as normal.
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- next Investigators say one device recovered in the Southern District of New York terror case contained triacetone triperoxide (TATP), a volatile explosive used in ISIS-inspired attacks worldwide. (United States District Court Southern District of New York)
- prev next Authorities allege the improvised explosive devices were packed with bolts and shrapnel to maximize injury during the attack outside the New York City mayor’s home. (United States District Court Southern District of New York)
- prev next Authorities enter the home of one of the accused. (FOX 29 Philadelphia)
- prev Authorities parked outside the home of one of the accused ISIS-inspired NYC bomb throwers. (FOX 29 Philadelphia)
Investigators say one device recovered in the Southern District of New York terror case contained triacetone triperoxide (TATP), a volatile explosive used in ISIS-inspired attacks worldwide. (United States District Court Southern District of New York)
Authorities allege the improvised explosive devices were packed with bolts and shrapnel to maximize injury during the attack outside the New York City mayor’s home. (United States District Court Southern District of New York)
Authorities enter the home of one of the accused. (FOX 29 Philadelphia)
Authorities parked outside the home of one of the accused ISIS-inspired NYC bomb throwers. (FOX 29 Philadelphia)
Both districts serve residential Bucks County communities outside Philadelphia — quiet suburbs now linked to a federal terrorism investigation.
There is no publicly reported prior criminal history for either suspect. Authorities have not said whether Kayumi was enrolled in college or employed at the time.
Balat lived with his parents in Langhorne. His parents were born in Turkey and became naturalized U.S. citizens in 2017. Kayumi’s parents immigrated from Afghanistan and became citizens in 2004 and 2009.
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On Sunday, FBI agents searched the homes of 19-year-old Ibrahim Kayumi in Newtown and 18-year-old Emir Balat in Langhorne. (FOX 29 Philadelphia)
According to the complaint filed in the Southern District of New York, investigators recovered a notebook from a vehicle parked blocks from the mayor’s home listing materials associated with triacetone triperoxide (TATP) production, including hydrogen peroxide, sulfuric acid and acetone, along with aluminum cans and bolts.
License plate reader data placed the vehicle crossing the George Washington Bridge less than an hour before the first device was allegedly thrown, prosecutors said.
NYPD Commissioner Jessica Tisch confirmed Monday that the devices were not smoke bombs or hoaxes, but real improvised explosive devices capable of causing serious injury or death.
"This is being investigated as an act of ISIS-inspired terrorism," Tisch said.
Police later located a vehicle tied to the suspects and recovered a third suspicious device. That device ultimately tested negative for explosive material.
