Lawmakers conveyed their shock and horror Sunday after more than a dozen people were killed by a lone gunman at a church in Sutherland Springs, Texas.

"Reports out of Texas are devastating," House Speaker Paul Ryan wrote on Twitter. "The people of Sutherland Springs need our prayers right now."

House Minority Leader Nancy Pelosi echoed Ryan's sentiment on social media, adding that she hoped "the injured & the families know America stands with them in this painful time."

Rep. Will Hurd, who grew up near Sutherland Springs, which lies east of San Antonio in southern Texas, said he could not "even begin to express my condolences to all of the families affected by this evil and disgusting act."

"My heart breaks to learn of today's devastating shooting outside my hometown," Hurd, R-Texas, wrote. "I'm grateful for the first responders and South Texas medical community trying to save innocent lives."

Police responded to reports of gunfire at First Baptist Church Sunday.

According to ABC News, at least 20 were killed and at least 27 more injured.

The shooter is reportedly dead.

The state's two Republican senators also reacted to the tragic news via social media.

"Keeping all harmed in Sutherland Springs in our prayers and grateful for our brave first responders on the scene," Sen. Ted Cruz tweeted.

"Truly heartbreaking news in #Sutherland Springs. Please say a prayer for First Baptist congregation, first responders & the community there," Sen. John Cornyn continued.

Senate Majority Leader Mitch McConnell tweeted that he and wife Elaine Chao, secretary of transportation, were praying for the families affected by the shooting.

Sen. Orrin Hatch, R-Utah, wrote of his dismay of "another violent incident in a church, where so many turn for peace."

"May God bless the victims and their families," he tweeted.