Police arrested dozens of people after protests across parts of England and Northern Ireland turned violent on Saturday, as the government pledged tough action against those it said were exploiting the murder of three girls to stir up disorder, Paralel.Az reports citing NDTV.

Violent protests involving hundreds of anti-immigration groups have erupted in towns and cities across Britain after three girls were killed in a knife attack at a children's dance class in Southport in north-west England last week.