Police have released details of a “person of interest” they are searching for following a shooting on a rush-hour subway train in New York.

Frank R James is 62 with addresses in Philadelphia and Wisconsin, officers said late on Tuesday.

At least 10 people were injured after a gunman in a construction vest donned a gas mask, set off a smoke canister and shot at commuters earlier in the day.

A further 13 people were injured in the aftermath of the shooting, the city’s police commissioner said.