At least two students were killed, and nine other people were wounded in a mass shooting Saturday at Brown University in Rhode Island.

School officials confirmed the shooting happened at about 4 p.m. inside a classroom in the Barus and Holley engineering building on Hope Street.

Authorities are searching for a suspect, described as a man dressed in black, last seen leaving the building on foot, according to Providence Police Deputy Chief Tim O'Hara. Late Saturday, police released surveillance footage on X of a person matching the alleged gunman's description walking near campus.

No weapons were found at the scene, officials said.

A shelter-in-place order remains in effect for the greater Brown University area.

FBI Boston confirmed it is assisting law enforcement partners in Rhode Island with any and all available resources, including evidence response, investigative and tactical support and victim assistance.

"FBI personnel are on the scene and assisting this evening after the shooting at Brown University and we will provide all capabilities necessary," FBI Director Kash Patel wrote in a statement on X. "Please pray for all those involved."

Law enforcement responded to an ongoing shooting at Brown University on Saturday. (Andrea Margolis/Fox News Digital)

Local law enforcement agencies and the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) are also assisting.

Officials confirmed more than 400 officers are on the ground.

School officials said they are working to determine who was in the building at the time of the shooting since there were multiple final exams scheduled in the building from 2 p.m. to 5 p.m.

The outer doors were unlocked due to the ongoing exams, according to authorities.

Local resident Elias Christian described the situation as "scary" to Fox News Digital reporter Andrea Margolis, who was at the scene.

"I've not heard of anything like this happening to this scale," said Christian, who lives only a few blocks from where the shooting occurred. "This is known as a safe part of the city. … We're basically on Brown's campus. This is the heart of Brown."

Brown University, the Providence Police Department and Rhode Island State Police did not immediately respond to inquiries from Fox News Digital.

President Donald Trump told the media following the Army-Navy football game he was briefed on the shooting.

"What a terrible thing it is," Trump said. "All we can do right now is pray for the victims and for those that were very badly hurt it looks like. ... We'll inform you later as to what's happening, but it's a shame. Let's just pray."

Rhode Island Gov. Dan McKee reacted to the shooting during a news conference, saying, "The unthinkable has happened."

City, university, state and federal officials hosted a news conference following a shooting at Brown University on Saturday. (Andrea Margolis / Fox News Digital)

The private, Ivy League institution has more than 11,000 students, with 100% of first-year undergraduates living on campus.

The Barus and Holley engineering building contains both classrooms and lab space.

Providence is a coastal city about 50 miles south of Boston. (Fox News)

•PHOTO: Surveillance footage of a person of interest following a deadly shooting at Brown University in Providence, R.I. (Providence Police Department)