Police officers 'bitten and hit with rock' after 'mob' sparks chaos in Thetford anti-immigrant disorder

One male police officer was struck with a rock, a female officer was bitten, and another was spat at after disorder at an anti-immigration protest in Thetford, Norfolk One male police officer was struck with a rock, a female officer was bitten, and another was spat at after disorder at an anti-immigration protest in Thetford, Norfolk