Kansas City police say a man has blown his hand off in a July four celebration gone wrong.

The victim and some friends had visited some bars early Sunday and then went to a friend’s apartment. The person who lived there lit the explosive and threw it into the hallway. The victim then reportedly picked it up and tried to throw it out the window, but it went off while he was still holding it.

Although he lost his entire right hand, authorities say no other injuries were life-threatening.