The windscreen of a police car was damaged while officers responded to a call in Fleetwood over the weekend.
Following reports of a disturbance on Noblett Court, officers attended at around 4:45pm on Sunday (February 25).
A large number of youths were seen running off with their faces covered.
While officers were making enquires into the incident, youths returned, throwing objects at officers and causing damage to a police vehicle.
A spokesperson said: ‘’This is unacceptable and has resulted in one less vehicle on the road to respond to calls for service and only by luck no one was seriously hurt.
‘’Do you know where your children were yesterday?
‘’Do you have any information about the incident?
‘’Do you have any CCTV/doorbell footage that may have captured the incident?
‘’If you have any information you can report anonymously by calling 0800 555 111 or email fleetwood.npt@lancashire.police.uk
‘’We already have the names of some people we want to speak to, so expect a visit!’’