Disorder which broke out in a part of west Belfast has been branded “absolute chaos” and “disgraceful”.
Police closed off a section of the Stewartstown Road in west Belfast on Saturday night due to “large crowds”.
Videos and pictures posted on social media show youths on top of police Land Rovers.
Sinn Féin assembly member Danny Baker said the “main thoroughfare was shut down by large groups of young people determined to cause chaos and destruction”.
Anti-social behaviour has been an ongoing problem in the area and last week police said they were increasing patrols following reports of stones and bottles being thrown at flats and buses along the road.
Baker continued: “What we witnessed on the Stewartstown Road last night was absolutely disgraceful.
“Residents and businesses were once again hemmed in, while youth workers were threatened by sinister elements standing on the sidelines of the disorder.
“This is not the Colin [Glen] I know, the Colin I represent or the Colin I love.”
Sinn Féin MP Paul Maskey, who represents west Belfast, said the “people of Colin deserve better”.
“Those intent on disrupting residents, closing off a key thoroughfare connecting communities and intimidating youth workers offer nothing for our community,” he said.
“I’m urging those responsible to stop this madness before someone is seriously injured or worse.”
Independent councillor Paul Doherty said the Stewartstown Road was “absolute chaos” again.
“The place is out of control,” he said.
“Those involved are showing complete disregard for their own community and for everyone who lives here.
“How any parent can be unaware of where their children are during all of this and not act immediately is beyond me.”
Doherty called for decisive action, adding that the current approach to the issue was not working.
He took to social media to thank the council staff who were out first thing on Sunday morning to clean up the mess.