CHICAGO (AP) — A fire has claimed the lives of all four family members of a Chicago firefighter.

WLS reports the two remaining children, a 2-year-old boy and 9-year-old girl who have been hospitalized since the Tuesday night fire, passed away Friday night, according to the Cook County Medical Examiner's Office.

The blaze also claimed the lives of firefighter Walter Stewart's wife, 36-year-old Summer Day-Stewart, who died on Friday, as well as the couple's 7-year-old son, Ezra Stewart, who died on Wednesday.

The identities of the two other children have not yet been released.

Previous story by The Associated Press:

A Chicago firefighter’s wife has died days after a fire at the family’s Northwest Side home also killed their 7-year-old son.

Summer Day-Stewart, 36, was pronounced dead at 7:30 p.m. on Thursday, Cook County officials said Friday.

Seven-year-old Ezra Stewart was pronounced dead Wednesday evening, the day after the fire, the Cook County Medical Examiner’s Office has said.

The boy, his mother and his two siblings, ages 2 and 7, suffered from smoke inhalation and were rushed to hospitals Tuesday night after being rescued from the burning home.

Firefighter Walter Stewart, who lived in the house, was not part of the fire crew that responded to the fire, but when he heard the address of the fire over radio dispatch, he went to the scene and gave his wife CPR, Chicago Fire Department spokesperson Larry Langford said.

Police said the fire started accidentally in the kitchen.