UPDATE: WBUR reports police found an Airsoft pellet gun, but no suspect.
A search for a man spotted with what might have been a gun near Landmark Center around 1:20 p.m. turned into a massive police search through Kenmore Square after he was spotted running into an inbound Green Line tunnel.
A BU Police order to "shelter in place" for 610 Beacon St. and 481 Commonwealth Avenue was soon extended to every building in Kenmore Square after police began looking for the man in the BU Bookstore.
He was described as "a white male with a beard, white t-shirt, blue jeans and a bandage on his face."
Around 2:15 p.m., though, BU Police lifted the stay-in-place directive; "Police have determined that the area is safe."
It's the second time in two weeks local campus police have issued stay-in-place orders.