Violence erupted Sunday at a rally organized to introduce mayoral candidate Bill Walczak’s public safety plan, when a man ran into the crowd and struck several people.
“For a moment there it was pretty frightening,” said Darek Barcikowski, Walczak’s campaign manager.
Officer Katherine Shea, a Boston police spokeswoman, said officers responded at 1:34 p.m. and spoke to witnesses who identified the man, whom she declined to name.
Police were able to quickly apprehend the man, who was taken by ambulance to Boston Medical Center for a psychiatric evaluation, Shea said. Full story for BostonGlobe.com subscribers.