Rep. Jamaal Bowman (D-N.Y.) pulled a fire alarm in the Cannon House Office Building on Saturday ahead of the House passing a stopgap measure to fund the government ahead of the midnight deadline, causing the building to be evacuated.

Republicans are accusing Bowman of intentionally trying to sabotage the vote, launching an investigation into the incident and preparing legislation to expel him from the House. 

But Bowman says it was an accident.

“Today, as I was rushing to make a vote, I came to a door that is usually open for votes but today would not open.  I am embarrassed to admit that I activated the fire alarm, mistakenly thinking it would open the door.  I regret this and sincerely apologize for any confusion this caused,” he said in a statement.

“But I want to be very clear, this was not me, in any way, trying to delay any vote. It was the exact opposite — I was trying urgently to get to a vote, which I ultimately did and joined my colleagues in a bipartisan effort to keep our government open.”

House Administration Committee Chairman Brian Steil (R-Wis.) said he will launch an investigation into the incident, saying that the committee has video of the incident.

Capitol Police are also investigating the incident, saying in a statement that the fire alarm was pulled at 12:05 p.m. on the second floor of the Cannon building.