Employees at a Minnesota Burger King smashed all the windows of the fast food restaurant on Friday night because a prank caller told them to.

Employees received a phone call from someone claiming to be from the Coon Rapids Fire Department who told them that the fast food joint was pressurized and could explode, reports KSTP. The caller told employees the only way to relieve the pressure was to break all the windows.

Here are the employees breaking the windows:

One employee suffered a minor hand injury and police are investigating.

This was the second prank at a Burger King this weekend, with another similar window breaking prank happening in Oklahoma.

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