Randy Travis undergoes heart surgery

Brian Mansfield | Special for USA TODAY

UPDATE: Randy Travis' sister-in-law Teresa Traywick released a statement about the singer's condition.

"We have been told he has had surgery. Our prayers are going out to him because my husband just had a heart attack last year, so it is in their family. Their mother passed away at an early age with her heart, so it is like these boys are following right in their footsteps. My prayers are with them. That's all I can say right now."

Country singer Randy Travis is in critical condition at a Texas hospital after being admitted Sunday. According to a press release from his publicist, the singer of such hits as Forever and Ever, Amen, On the Other Hand and Three Wooden Crosses is suffering complications of recently acquired viral cardiomyopathy.

Viral cardiomyopathy is a weakening of the heart muscles caused by a viral infection.

Travis, who pleaded guilty to a charge of driving while intoxicated in Texas earlier this year, was hospitalized in 2012 after a fight near a church in Plano, Texas.