Republicans were protesting over the raising of the Armed Forces Day flag
Republicans who were intending to protest at an event celebrating Armed Forces Day at Belfast City Hall were stopped by police.
A crowd of about 50 people walked down Castle Street in the city centre, where they were blocked by officers in riot gear on Saturday morning.
The police said that because the group stepped onto the road their protest became an "illegal parade".
The crowd dispersed a short time later after some shouting.
The republicans were protesting over the raising of the Armed Forces Day flag at City Hall.