HARTFORD, Conn. (AP) Connecticut officials say a Hartford firefighter who died battling a house blaze was a six-year veteran who was married with a daughter. Three other firefighters were injured.

Hartford Mayor Pedro Segarra on Wednesday identified the firefighter as 48-year-old Kevin Bell of Hartford. Officials said he was the first city firefighter to die in the line of duty in four decades.

Segarra says the injured firefighters are 29-year-old Jason Martinez, 34-year-old Colin McWeeny and 51-year-old Kevin Burke. Martinez, of Manchester, is in critical but stable condition at the burn treatment center at Bridgeport Hospital.

Officials are investigating the cause of the fire on Tuesday night in the city's North End. Residents of the home got out safely.

Gov. Dannel P. Malloy ordered flags to fly at half-staff in Bell's memory.