Traffic was brought to a standstill in a part of south Belfast after violence broke out involving gangs of youths.
Youths tried to block part of the Westlink during the trouble
About 40 youths were involved in trouble at Glenmachan Street close to the Broadway roundabout on Friday night.
Stones were thrown at cars and the police, and youths tried to block part of the Westlink.
Police said the trouble was linked to searches in the area on Friday afternoon when two men were arrested. A number of items were also seized under anti-terrorist legislation.
Drivers faced delays as traffic was diverted away at the Grosvenor Road roundabout on the Westlink, Donegall Road and Boucher Road.
The police moved in and forced the youths back off the main road.
The trouble lasted for about an hour and a half. Community workers were later called in to keep the youths off the streets.