ARMED COPS SWOOP ON CHAINSAW PARTY-GOER.

ARMED police were called to arrest a masked man wandering in the Midlands with a whirring chainsaw - only to discover he was on his way to a fancy dress party.

Terrified residents in Bicester, Oxford, called cops after spotting the man dressed as the serial killer Jason from the Friday the 13th series of horror films.

An armed response unit and the force helicopter were scrambled to the scene within minutes and the hapless party-goer found himself surrounded by burly cops brandishing guns.

But embarrassed officers sent him on his way after discovering he was off to a fancy dress party - after threatening him with a fixed penalty fine unless he covered up.

Thames Valley police spokesman Toby Shergold said: "They found the man and discovered he had removed the blades from his chainsaw and was wearing what was possibly fancy dress.

"There was no threatening behaviour on his part. Our officers told him to cover up his outfit, or he would be arrested or given a fixed penalty notice.

"He looked as though he was wearing fancy dress and was on his way to an event."

CAPTION(S):

HORROR: a fancy dress Jason terrified residents