May 11 (UPI) -- A gunman armed with an assault-style rifle fired dozens of rounds at vehicles as he walked Cambridge's iconic Memorial Drive, seriously wounding two people before being shot by state police and an armed bystander, authorities said.

The suspect, identified as 46-year-old Tyler Brown of Boston, suffered multiple gunshot wounds to his extremities and was taken for treatment to a Boston hospital, where he remains under police custody in the intensive care unit.

The shooting began around 1 p.m. EDET, authorities said.

Middlesex District Attorney Marian Ryan told reporters during a Monday evening press conference the suspect was firing erratically at vehicles as he walked east down the center of the famous drive that banks Charles River near Harvard University and the Massachusetts Institute of Technology.

Related