New Jersey’s emergency alert system accidentally sent out a false nuclear power plant warning to some television sets Tuesday night.

***FALSE EMERGENCY ALERT*** You may have seen this message on your TV tonight.There is NO emergency. This message went out in error #ReadyNJ pic.twitter.com/qzh0l9rZ03 — NJOEM (@ReadyNJ) May 24, 2017

The warning was issued in Salem and Cumberland counties with the message, “a civil authority has issued a nuclear power plane warning the following counties/areas.”

The New Jersey Office of Emergency Management quickly corrected its mistake, tweeting there was no emergency and that the message “went out in error.”