A police helicopter and an ambulance were scrambled to a house in Morecambe after calls someone was being stabbed - only for them to find it was a hoax.
As distressed control staff at ambulance headquarters listened to what they thought was an attack in progress, it turned out to be an elaborate hoax.
North West Ambulance has issued a warning to hoax callers after two youths were arrested and charged.
Derek Cartwright, director of operations for the NWAS said: “This particular call was extremely harrowing and while it might have been ‘funny’ to those making the call, it was an extremely traumatic experience for our staff member as well as a waste of resources.
“Anyone who thinks making hoax calls to the emergency services is acceptable should consider that it is a criminal offence and we can trace calls from unknown or blocked numbers.”
Two youth aged 16 and 17 , will appear before magistrates in Kendal next month.