India, Aug. 8 -- A UK police force said on Friday that its officers have been tackling serious violence, including being bitten and spat at by protesters, over days of anti-migrant clashes at a town in eastern England.

Norfolk Constabulary condemned the violence over three nights of disorder at Thetford as protesters targeted properties they believed were housing asylum seekers. Four people were arrested and a 68-year-old man has been charged with possession of an offensive weapon, namely a wooden bat, since the protests turned violent on Tuesday night.

"As police intervened, members of the group became physically aggressive towards officers - two were taken to hospital after a male officer was struck with a rock and a female officer wa...