Comedian Amy Schumer tweeted her support after a shooting left three dead and seven injured at a showing of her movie "Trainwreck" at a Lafayette theater.

According to police, about 100 people were in the theater for a screening of Schumer's movie when a 58-year-old white man started shooting. He died of a self-inflicted gunshot.

Schumer wasn't the only celebrity to react to the tragedy on social media.

The Associated Press contributed to this report.