HARTFORD, Conn. (AP) — Police are investigating multiple bullet holes that were discovered Tuesday in the glass windows of Connecticut's state Capitol building, authorities said.

The bullet holes were found at approximately 9:15 a.m. on the south side of the Capitol building, according to the State Capitol Police. No one was injured.

Legislators arrived for a session of the House of Representatives to find a large police presence outside the Capitol, which opened in 1872.

“I know they’re still looking at it right now, but there is some concern that somebody really fired a bullet through the window. And maybe it will turn out to not be that, but that’s what we’ve heard,” said House Speaker Matt Ritter, a Democrat from Hartford. “That is their best guess right now, is that sometime late last night that it happened.”

The Connecticut State Police, including its Major Crimes detectives, and Hartford police were assisting the State Capitol police in the investigation.

The building remains closed to the public because of continuing COVID-19 protocols. Only lawmakers, staff and media are allowed inside.

The General Assembly is scheduled to adjourn its regular session on June 9.

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This story has been corrected to reflect that only the state House of Representatives was meeting in session on Tuesday, and not the state Senate.