Police have issued warnings after thousands of people gathered in West Belfast to protest Northern Ireland protocol.
Loyalists gathered in Woodvale on Thursday night to organize a rally and then a parade took place along Shankill Road.
Images on social media showed the burning of a United Ireland banner that was displayed on the nationalist side of the peace wall earlier this year.
Police estimated that more than 3,000 people participated, in excess of the number currently allowed to gather in public under coronavirus regulations.
Under the Brexit withdrawal agreement protocol, designed to avoid a hard border on the island of Ireland, Northern Ireland de facto remains in the single market and EU customs policy applies to goods from mainland Britain.
This year there has been loyal violence from those who claim that their British identity is being questioned by the agreements.
Talks to resolve the impasse over the protocol’s implementation collapsed without an agreement earlier this week.
US President Joe Biden, who is in Cornwall for the G7 summit this weekend, has urged the UK to resolve its disputes with the EU. It is feared that the issue could overshadow the entire summit, with French President Emmanuel Macron warning that “nothing is negotiable” with the protocol.
In Belfast, Ch Insp Darren Fox said police were present and several warnings were issued. He said the images will be examined to detect suspected violations of public health regulations.
“Organizers of parades / processions are required to give formal notification of their intentions, which sadly was not provided or reported,” he said.
“The figures also exceeded those allowed by the Public Health Regulations.”
West Belfast MP Paul Maskey criticized the meeting, saying it included masked men.
“The appearance of numerous masked men leading and participating in a parade of illegal loyalists in the Shankill area of West Belfast is sinister and disturbing,” he said.
“We have witnessed recent violence on the streets where property was destroyed, police officers were injured and people were left in their homes terrified. Those scenes cannot be repeated. “The Northern Ireland Police Service must now address this illegal parade and the actions associated with it.
“Those in leadership positions in political unionism must also come out and condemn the scenes witnessed tonight, including masked men in front of a DUP constituency office and other sinister banners directed at US President Joe Biden.
“Hooded men on our streets or called to provoke instability have no place in our society and those in leadership positions must make that clear.”