Gwent Police is appealing for information after a police car window was smashed while officers responded to a call.
Officers were called to reports of antisocial behaviour in Twynyffald Road, Blackwood, and spoke to a group of youths on the nearby Bedwellty Showfields at around 8.55pm on Friday September 28.
A 17-year-old local boy was arrested for a public order offence and while officers were making the arrest, another person is believed to have smashed the rear off-side window of a police car.
If anyone has any information regarding the damage to the police car, please call 101.