U.S. Capitol Police are prepared for any possible future attacks on Congress, its chief said on Monday ahead of the second anniversary of the deadly Jan. 6, 2021, attack and the dissolution of the congressional panel investigating it.

"The current threat climate, particularly against elected officials, will require continued and heightened vigilance," USCP Police Chief Tom Manger said in a statement. "With the polarized state of our nation, an attack like the one our Department endured on January 6, 2021 could be attempted again. Should the unthinkable happen, we will be ready."

Five people died and more than 140 police officers were injured two years ago this week when supporters of then-President Donald Trump violently breached the U.S. Capitol as lawmakers and Trump's vice president, Mike Pence, were set to certify his loss to Democrat Joe Biden.

A bipartisan U.S. House of Representatives panel investigating the attack said last month that Trump should face criminal charges for his role in sparking the deadly siege.