WJLA-TV(ANNAPOLIS, Md.) — The shooting at a Maryland newsroom that killed five people was a targeted attack, according to local police.

Anne Arundel Police Department Bill Krampf said that the assailant, armed with a shotgun, looked for victims in the newsroom of the Capital Gazette, a daily newspaper in Annapolis, which is located in the first floor of a multi-office building.

“He looked for his victims as he walked through the lower level,” Krampf said in a news conference Thursday evening.

Two people suffered superficial injuries, possibly from glass or the shotgun blast, and authorities are in the process of reaching out to next of kin for the deceased, Krampf said.

It is unclear if the gunman knew employees at the paper or if he was just targeting the business “in general,” Krampf said. Investigators are that he “had a history with the newspaper,” but that has not yet been confirmed, Krampf said.

The gunman, whose name was not released, was engaged by responding officers within about 1 minute and taken into custody, officials from Anne Arundel County Government said.

There was no gunfire exchanged between the suspect and officers, officials said during an afternoon news briefing.

The suspected shooter wasn’t carrying a wallet or identification and is not cooperating with authorities, officials told ABC News. He is a white male in his late 30s, Krampf said, adding that investigators are now securing his Maryland residence.

Authorities identified the gunman by using facial recognition, a law enforcement source told ABC News. The gunman had mutilated his fingers in an apparent attempt to avoid being identified, the source said.

Krampf could not confirm those reports during Thursday’s news conference.

“This person was prepared today to come in,” Krampf said. “This person was prepared to shoot people. His intent was to cause harm.”

Phil Davis, a crime and courts reporter with the Capital Gazette, said the gunman shot through a glass door into the office.

“There is nothing more terrifying than hearing multiple people get shot while you’re under your desk and then hear the gunman reload,” he tweeted.

Davis described the experience as being “like a war zone.”

“I’m a police reporter. I write about this stuff,” Davis later told The Baltimore Sun, which owns the Gazette, after he escaped the building. “But as much as I’m going to try to articulate how traumatizing it is to be hiding under your desk, you don’t know until you’re there and you feel helpless.”

Capital Gazette photojournalist Joshua McKerrow tweeted that he and his colleagues are continuing to cover the story, along with Baltimore Sun reporters.

“There will be a Capital Friday,” he said.

After the shooting, about 170 people were safely evacuated from the building and no one else there is a threat, officials said.

Authorities recovered “what we thought may have been an explosive device,” said Anne Arundel County Acting Police Chief William Kramph said. The device was actually canisters filled with smoke grenades that the gunman used when he entered the building, Kramph said.

A man who works across from the Capital Gazette offices said he heard “an incredibly loud bang.”

“I saw a guy holding a gun,” he told ABC affiliate WJLA-TV in Washington, D.C. “The door of the Capital Gazette had been blown to pieces.”

The U.S. Naval Academy tweeted, “The Capital Gazette is our local newspaper and is often the first to tell our story. We are grieving with their staff and loved ones after the tragic events that occurred today.”

“Absolutely devastated to learn of this tragedy in Annapolis,” Gov. Larry Hogan wrote on Twitter. “Please, heed all warnings and stay away from the area. Praying for those at the scene and for our community.”

President Trump has also been briefed on the shooting, tweeting, “My thoughts and prayers are with the victims and their families. Thank you to all of the First Responders who are currently on the scene.”

Out of an abundance of caution, the New York Police Department is moving personnel to headquarters of major media outlets in New York, including ABC News.

Tronc the parent company of the Capital Gazette, released a statement commending law enforcement officers who their quick response, adding that it is focused right now on providing support to employees and their families.

“We are deeply saddened today by the attack in our Capital-Gazette newsroom,” the statement read. “Our thoughts and prayers are with the victims and their families. We are focused now on providing our employees and their families with support during this tragic time. We commend the police and first responders for their quick response,” said Justin Dearborn, Chairman and CEO, tronc, Inc.”

This story is developing. Please check back for more updates.

Copyright © 2018, ABC Radio. All rights reserved.