A “person of interest” in the Brown University mass shooting is in custody following an 11-hour manhunt — as witnesses revealed he shouted something before opening fire.

Two students were killed and nine others wounded in the attack on a final exam study session.

Witnesses said that the gunman shouted something, but revealed they were not sure exactly what. Detectives are still trying to figure out what the gunman said, authorities revealed.

It was also revealed that the gunman had a firearm with unique characteristics that helped cops tie him to the deadly shooting, according to NBC News.

However, authorities would not comment on whether the gunman was connected to the elite school in Providence, Rhode Island. 

This video grab from a CCTV footage released by the Providence Police Department shows the suspect in the Brown University shooting. Providence Police Department/AFP via Getty Images

A shelter in place order was lifted on the Ivy League school campus, and all final exams have been cancelled.

One of the injured victims remains in critical condition, seven are in a stable condition and one has been discharged from the hospital, Providence Mayor Brett Smiley told reporters Sunday morning.

The person of interest was taken into custody following heavy police activity at a Coventry, RI, hotel at around 3:45 a.m. that law enforcement officials said was “connected” to Saturday’s deadly shooting.

Investigators are not currently searching for anyone else in connection with the shooting, Providence Police Dept. Chief Col. Oscar Perez told the press conference.

Few other details have been given on the person taken into custody and it isn’t clear if he was affiliated with the university.

Here’s the latest on the mass shooting at Brown University

A heavy police presence remains in place as of Sunday morning, with access to the university’s Minden Hall and nearby apartment buildings still limited.”The people of Providence should breathe a little easier this morning,” Mayor Smiley said.

The shooting happened around 4:30 p.m. during a final exam review session at the private university.

According to officials in Providence, Rhode Island, one of the injured victims remains in critical condition, seven are in a stable condition and one has been discharged from the hospital. Kyle Mazza/Shutterstock

Members of the FBI Evidence Response Team work the scene. Kyle Mazza/Shutterstock

Police officers gather near the site of the shooting. REUTERS

“All of a sudden, we heard gunshots and people screaming,” said Joseph Oduro, the teaching assistant who hosted the review session, to the New York Times.

Oduro was saying goodbye to his students a little after 4 p.m. when the gunman burst into the lecture hall in an engineering building on campus. Oduro hid with 20 others, including a wounded student, behind a desk.

He recalls hearing the gunman shout something incomprehensible.

“That’s what the students and I — and the detectives — have been trying to piece together,” he said.

The shooting happened around 4:30 p.m. during a final exam review session.

Access to the university’s Minden Hall and nearby apartment buildings is still limited.

Given the layout of the lecture hall, Oduro told the Times that students in the center section of seats would the most exposed to open fire.

“The students in the middle were impacted the most,” he said. “Many of them were lying there and they were not moving. I have no idea how many.”

None of the casualties have been identified and it isn’t clear how many were students.

Footage of the alleged shooter was released Saturday evening showing the suspect exiting an academic building onto Hope Street.

He was described as “a male, dressed in black,” and possibly in his 30s by Tim O’Hara, Providence Police deputy chief, on Saturday night.