On Saturday, ten people were killed at a grocery store in Buffalo.

Many celebrities have been posting about the senseless violence online.

“The Big Bang Theory” alum Mayim Bialik posted about it on Instagram.

She said that the shooting is “is heavy on so many hearts this weekend.”

Justin Bieber dedicated his concert in Buffalo to the victims.

He asked for a moment of silence while on stage and posted a video of him praying with his crew backstage.

“Hocus Pocus” actress Bette Middler bluntly tweeted, “This country is a disgrace.”

She attached a photograph of a newspaper with the headline: “Grief And Rage Rock Buffalo After Racism Fuels Massacre.”

Comedian Steve Hofstetter tweeted, “Maybe all these people offering thoughts and prayers suck at thinking and praying.”