Lots of people with flags are heading down Newtownards Road towards Belfast City Centre. Many are masked.
Maybe 200 to 300 in the Newtownards Road parade. Police are with them and the marchers are singing and good natured but many faces are covered.
Police say on loudspeaker: "Persons in the crowd wearing masks must removed them or face arrest".
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High pressure will help keep conditions relatively quiet through the course of this week.