Boston University President Melissa Gilliam on Sunday said BU’s community “stands ready to assist” Brown University after a gunman killed two students and injured nine other people in a classroom on the university’s campus in Providence, Rhode Island on Saturday afternoon.

“Our hearts go out to the families and others suffering after the tragic violence at Brown University,” Gilliam said in a statement posted on BU’s Instagram page. “Our community stands ready to assist Brown in any way possible and to provide support and assistance to anyone in need during this profoundly difficult time.”

Around 4 p.m. on Saturday, a gunman entered a first-floor classroom of the Barus and Holley engineering and physics building on Brown’s campus and opened fire, officials said. A few dozen students and at least one teaching assistant were in the classroom at the time preparing for a final exam, The Washington Post reported.

A witness inside the classroom told The Post that students screamed and tried to flee as the gunman took shots at students inside the auditorium-style classroom. The Associated Press reported that the gunman used a 9 mm handgun in the attack and fired more than 40 rounds. 

Authorities confirmed that those killed in the attack were students. The Boston Globe reported Monday that their names were Ella Cook and Mukhammad Aziz Umurzokov.

Authorities arrested a “person of interest” at a nearby hotel in Coventry, Rhode Island early Sunday morning following a 12-hour manhunt, officials said. But during a late Sunday press conference, officials said they were releasing that suspect and that the real perperator was still on the loose.

Representatives from BU and the BUPD did not immediately return requests for comment asking if security would be increased around BU’s campus in the wake of the attack. Outside doors to the Barus and Holley building were left unlocked prior to the attack, Providence Mayor Brett Smiley said.

The Harvard Crimson on Sunday reported that Harvard police have increased security around the campus in Cambridge, though police said there “is no information indicating a credible threat to the campus or to its affiliates.”

Security increases at Harvard include additional buildings requiring Harvard ID swipe access to enter, according to The Crimson.

Brown University cancelled all remaining final exams, papers, and projects for the fall semester, school officials said. The university is about 40 miles away from BU.