Fire swept through a house early Saturday, killing two women and two children, fire officials said.

Four people escaped the small, two-story house by the time firefighters arrived about 3 a.m., fire Battalion Chief Mark Klein said. A woman and three children were taken to a hospital to be treated for smoke inhalation and other, non-life-threatening injuries, Klein said.

It was not immediately clear whether the victims were related or how old they were. The children who died were a girl and a boy, Klein said.

The fire started in the kitchen, Klein said. Two victims were found in a bedroom above it and were pronounced dead at the scene. The other two were found in a different second-floor bedroom and were pronounced dead at a hospital.

The fire was being investigated. Two firefighters received minor injuries.