Two firefighters have died and four have been injured in Delaware while battling a pre-dawn fire in a rowhouse.

The Wilmington Fire Department said Lt. Christopher Leach, 41, and Senior Firefighter Jerry Fickes, 51, died in the fire, which began around 3:15 a.m. Saturday.

The floor of the home collapsed as firefighters went inside, and four firefighters fell.

Two firefighters were in critical condition at a medical center. Two others were treated at a hospital and one of them has been released.

Four children and one adult were taken to St. Francis Hospital for smoke inhalation.