PSNI officers in Craigavon, Co Armagh have been attacked by a large crowd throwing bricks and bottles.
A car was also hijacked and set alight in the town in the early hours of today.
Officers attending a report of suspicious activity in the Ardowen area shortly before 1am were attacked by the crowd of predominantly youths.
Police have not reported any injuries.
Two hours later a Vauxhall Astra car was hijacked in the Monbrief East Road area and set on fire at a roundabout. The car was completely destroyed.
The crowd dispersed before 4am and police remained in the area for a time to monitor the situation.
Officers have appealed to anyone who has information to contact them in Lurgan on 0845 600 8000 or through the independent Crimestoppers charity anonymously on 0800 555 111.
PA