Police of North Ireland province in the United Kingdom (UK) announced that fifteen officers were injured during clashes with the angry protesters in Belfast, the local capital of the region.
The local Irish police released a statement says that a limited demonstration was mounted lately yesterday in the south part of Belfast.
But the protest converted to violence at the scene.
The statement pointed out that protesters threw heavy stone pieces, metal rods, fireworks, and lids of sewage wells at police officers.
The police revealed that injured officers were susceptible to burns, bruises on the head and feet.
Seven people, among them, were two minors, were arrested on the spot.
Management of police appealed for calm and stopping this appalling behavior.
It urged all people who have influence in the province to intervene to terminate violence there.
On other hand, the Irish Times, a local newspaper circulated in Belfast warned that Belfast witnessed violence four the fourth night in a row.
The protesters are loyal to a political movement that promotes to remain North Ireland in the European Union (UE).
They oppose the trade treaties signed between the UK and Brussels (where headquarter of the EU) in the frame of the Brexit.
First Minister in Ireland Arlene Foster warned young people not to get “drawn into disorder”, an appeal echoed by Secretary of State Brandon Lewis, who said the violence was “completely unacceptable”.
Foster said: “I know that many of our young people are hugely frustrated by the events of this last week but causing injury to police officers will not make things better.
“I appeal to our young people not to get drawn into disorder which will lead to them having criminal convictions and blighting their own lives.”
Lewis said: “The unrest we saw last night is completely unacceptable. Violence is never the answer. There is no place for it in society.
It is unwanted, unwarranted and I fully support the police appeal for calm.