Two people were chased inside Chick-fil-A on Boylston Street around 5:27 p.m. by a man armed with a knife, officials said.

The incident occurred around 5:27 p.m. when two individuals ran into the crowded Back Bay restaurant, attempting to escape a man wielding a knife.

Surveillance video shows people running out of a Chick-fil-A after police said an off-duty officer shot and killed a man chasing two people with a knife.