PORTADOWN, Northern Ireland (Reuters) -Rioters attacked police with petrol bombs, rocks and fireworks in the Northern Irish town of Portadown on Thursday, a Reuters witness said, as a fourth night of anti-immigrant violence moved to a different part of the British-run province.

Michael Asuro, who lives in the house with his wife, Jessa Sagarit, said he came to Northern Ireland just under two years ago to seek a better life. Sagarit said she felt traumatised by the events. Police have said they are braced for more violence on Wednesday.

Hundreds of masked rioters launched attacks on police, setting fire to homes and cars in the Northern Irish town of Ballymena during a second night of civil unrest. According to the Police Service of Northern Ireland (PSNI),