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 a demonstration 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