Something went wrong, please try again later. Invalid email Something went wrong, please try again later. A BBC journalist was allegedly beaten up and arrested for "filming" a lockdown protest as China sent riot police in to quell rebellion and crush dissent. The broadcaster said it was "very concerned" after confirming cameraman Edward Lawrence "was attacked" in Shanghai on Sunday. A BBC spokesperson said: "The BBC is extremely concerned about the treatment of our journalist Ed Lawrence, who was arrested and handcuffed while covering the protests in Shanghai. He was held for several hours before being released. "During his arrest…