A sizable police presence has gathered in the city centre on Monday evening ahead of a planned anti-immigration protest.
The protesters are yet to arrive at the Clayton Hotel, where the protest was scheduled to begin at 5pm.
Several counter groups have turned up and are watching from a distance.
Earlier, BBC offices went into lockdown ahead of a protest.
The BBC have been contacted for comment.
Earlier on Monday, four men were remanded into custody accused of taking part in riots and an illegal parade during anti-immigration protests over the weekend.
Several businesses were attacked and some were set on fire during the protests after an anti-immigrant demonstration moved from Belfast City Hall to surrounding streets.
Three police officers were injured and four members of the public reported that they were assaulted.
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Watch: Cars burn during night of disorder in south Belfast