Imagine you're sat at home watching a game of football and all of a sudden it's interrupted by a missile warning giving you minutes to find cover.
It's something no one hopes to experience in their lifetime, but during Tottenham vs Everton on Saturday, Hawaiian residents were put through that trauma.
Just as the referee blew for half-time at Wembley, with Spurs leading 1-0, an alert popped up on screen saying a missile was inbound.
An automated voice then explained how the United States Pacific Command had detected a missile that may impact on land or sea "within minutes".
It then said, "This is not a drill," before advising people indoors to stay indoors and people outside to seek immediate shelter.
Sounds terrifying, right? Check out the video below.
FALSE ALARM IN HAWAII
Thankfully it was a false alarm, with Hawaii Emergency Management Agency soon tweeting to confirm that no missile was heading towards them.
Hawaiian residents even received an emergency alert on their phones, which you can also see below.
The message read: "Ballistic missile threat inbound to Hawaii. Seek immediate shelter. This is not a drill."
Commander David Benham, a spokesman for the United States Pacific Command, has since released a statement.
"USPACOM has detected no ballistic missile threat to Hawaii," he said. "Earlier message was sent in error. State of Hawaii will send out a correction message as soon as possible."
An investigation is currently underway looking into why the missile warning was mistakenly shown on the Emergency Broadcast System.
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