A U.S. Capitol Police officer has died following injuries suffered in the violent siege on the building Wednesday, according to a press release from the department.

The death is the fifth connected to the riots, which saw swarms of pro-Donald Trump protesters overwhelm police barricades, surge into the Capitol and force lawmakers to go into hiding.

The officer, identified as Brian D. Sicknick, died at 9:30 p.m. Thursday evening, police said.

"Officer Sicknick was responding to the riots on Wednesday, January 6, 2021, at the U.S. Capitol and was injured while physically engaging with protesters," USCP said in a statement. "He returned to his division office and collapsed. He was taken to a local hospital where he succumbed to his injuries. The death of Officer Sicknick will be investigated by the Metropolitan Police Department's Homicide Branch, the USCP, and our federal partners."

Read more: ABC News