As police hunt down those who attacked police at the anti-migrant protest in Portsmouth, anti-racism campaigners say the violence was a ‘wake-up call’ amid fears of further disorder

Traffic at Britain's largest international port briefly halted as 'stop the boats' protesters blocked approaching roads.

Hundreds of demonstrators dressed in black and wearing balaclavas blocked the streets around Dover earlier today, shouting 'stop the boats' in what the Port of Dover described as…