Sen. Richard Blumenthal (D-Conn.) said on Monday after the deadly mass shooting in Las Vegas that he is “furious” at Congress for refusing to act on gun control.

Blumenthal, whose state of Connecticut was the location of the deadly mass shooting at Sandy Hook Elementary in 2012, said he is “more than frustrated” over Congress’s inaction on gun violence.

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“Although many details of this mass shooting remain unclear, one thing is certain: yet again, we are watching in horror as another American community is torn apart by the terrible devastation wrought by a gunman,” Blumenthal said in a statement.

“It has been barely a year since what was previously the largest mass shooting in American history — the deadly attack at Pulse nightclub. In the interim, thousands more have been lost to the daily, ruthless toll of gun violence.”

“Still, Congress refuses to act. I am more than frustrated, I am furious,” Blumenthal said.

Blumenthal, along with fellow Connecticut Sen. Chris Murphy (D), has regularly pushed for Congress to pass gun control legislation since the Sandy Hook mass shooting.

He joined Murphy on the Senate floor during Murphy’s hours-long filibuster to protest Congress’s inaction on gun control legislation after the deadly shooting at Pulse nightclub in Orlando, Florida, in June 2016.

Blumenthal also backed Murphy’s legislation in June 2016 that would have expanded background checks for gun sales or transfers. The bill failed to pass in the Senate.

At least 50 people are dead and 400 others injured after a gunman targeted the crowd at an outdoor country music festival late Sunday in Las Vegas.

—This report was updated at 10:30 a.m.