Locals residents contacted the PSNI and local neighbourhood policing officers were deployed – who then came under attack.
Bricks, blocks, bottles and other missiles were thrown at the officers.
One of the local neighbourhood sergeants was hit with masonry on the shoulder and injured.
The windscreen of one of the police landrovers was also smashed.
Chief Inspector David Moore, Area Commander for East Belfast, said: “This behaviour is totally unacceptable and a police investigation has begun to identify youths involved.
“Since April 2014, there have been approximately 60 arrests for interface related disorder in east Belfast.”
Police have nightly patrols in the area to keeping rival gangs apart at a cost of £30,000 per evening.
The PSNI say it has evidence that the gatherings are organised through social media.