One wittness tweeted: “The police have now arrived and Westhoughton Market is in lockdown after market traders say protestors tried to force their way in.
“We were inside the market at the time and didn’t see what happened.
“Have spoken to market traders who are angry at the protestors, saying they have stopped Boris Johnson from coming to promote small businesses.”
Political Correspondent Hannah Miller has tweeted: “Police are describing what happened as a ‘disturbance’ and say there had also been an allegation of assault.
more to follow…