Police were called to an out of control 18th birthday party after 150 people showed up.
Officers and a dog unit went to Clittaford Road in Southway, Plymouth, at about 10pm.
Residents called police after fighting broke out in the street, reports Plymouth Live .
The force incident manager for Devon and Cornwall Police confirmed that officers found a large number of the youths at the event were 'in drink'.
They were at the scene for over an hour last night as they worked to disperse the party guests.
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No arrests have been made but those involved were warned that if they didn't leave police would be forced to make arrests.
It is not known if anyone is injured as a result of the party.
No more details are known at this time
