Documents with the word “USAID” were discovered in the vehicle of Mohamed Sabry Soliman, who faces accusations of allegedly throwing explosives at a peaceful demonstration in Boulder, Colorado. The group was advocating for the release of hostages held by Hamas.

The event occurred on Sunday when the pro-Israel group “Run for Their Lives” held a protest on Pearl Street. Boulder police reported that the alleged attack injured eight individuals, and initial calls described a man attempting to set people on fire.

As per an arrest affidavit, authorities located paperwork labeled “USAID” within Soliman’s 2015 silver Toyota Prius. Additionally, other documents referencing “Israel” and “Palestine” were reportedly found in the vehicle, alongside a red gas container and rags.

A senior State Department official told Fox News Digital that Soliman isn’t a United States Agency for International Development employee.

Soliman allegedly told federal and local law enforcement officials during an interview that he specifically targeted a “Zionist group” that gathered in Boulder on June 1 because he wanted to stop them from taking over “our land,” which he said is “Palestine.” Soliman allegedly said he was planning the attack for a year, adding he waited until his daughter graduated.

Anti-bomb robotics are put into place following an incident involving multiple injuries that the FBI is investigating as an act of terror on June 1, 2025 in Boulder, Colorado. A suspect is in custody after reportedly throwing an incendiary device at a group participating in an organized walk near the courthouse to show solidarity with hostages held by Hamas in Gaza. (Chet Strange/Getty Images)

Soliman remains in jail on a $10 million bond. He was allegedly heard yelling, “Free Palestine.”

According to sources who spoke with Fox News, Soliman was in the United States illegally and is an Egyptian national.

Soliman first came to the U.S. on Aug. 27, 2022 on a B1/B2 non-immigrant visa that expired on Feb. 26, 2023, but he didn’t leave.

Soliman filed a claim with United States Citizenship and Immigration Services on March 29, 2023, which authorized him to work through March 2025.

FBI director Kash Patel described the incident as a terror attack in a post on X.

Law enforcement officials dress up in protective gear to investigate an attack on the Pearl Street Mall, Sunday in Boulder, Colorado. (AP)

“We are aware of and fully investigating a targeted terror attack in Boulder, Colorado,” FBI director Kash Patel said. “Our agents and local law enforcement are on the scene already, and we will share updates as more information becomes available.”

Fox News’ Bill Melugin contributed to this report.