There have been renewed calls for increased policing in north Belfast after yet another violent weekend.
Police and British soldiers were called to the sectarian interface on the Limestone Road to separate rival crowds on two occasions.
The first outbreak of violence took place around midday on Saturday when about 180 nationalists and loyalists threw stones and bottles at each other. A heavy security presence remained in the area but was later withdrawn. The second incident took place at about 7 a.m. yesterday and involved about 100 people.
Mr Nelson McCausland, a Democratic Unionist Party member of Belfast City Council, called on Saturday for the police service to maintain a permanent presence on the Limestone Road.
Mr McCausland said that "on Saturday just before midday there was a fairly small altercation between some republicans and loyalists, but this very soon developed into a significant riot and I think one of the difficulties was that there was no police presence on the interface at the time," he said.
"I would much prefer that there was a permanent police presence there to nip these things in the bud at the time, rather than have to bring in very large numbers of police and army when things get out of control."
Tensions between the Catholic and Protestant communities in north Belfast have been high for more than six months. And there has been sporadic rioting at interface areas such as the Limestone and Whitewell Roads since the summer.
Hundreds of civilians, police officers and soldiers have also been injured during the clashes, and one person has been killed
In south Belfast, police said they were treating as malicious a fire which destroyed a loyalist football supporters' club.
Flames were spotted coming through the roof of the two-storey Sandy Row Glasgow Rangers supporters' club at the corner of Sandy Row and the Donegall Road at about 7.30 a.m. yesterday. At one stage, six fire service appliances were used to fight the blaze but the building could not be saved.