A four-year-old boy is in hospital after a Friday morning fire in the northeast.

Crews were called to the blaze on Falshire Dr. N.E. around 10 a.m.

Nicola Lacousta, 35, was on the second-floor of the home and managed to jump out to escape the smoke.

But she was screaming that her son Dillon was in the basement and couldn't get out as flames were raging at the stairs.

Firefighters went into the home and brought out the child.

"We extinguished that fire while we were going about doing a search for the child," said Brian McAsey with the Calgary Fire Department.

"We were able to find him extremely quickly. He was semi-conscious when we found him. We were able to get him outside the building and deliver him up to EMS."

The boy was rushed to Alberta Children's Hospital in critical, life-threatening condition but is now in stable condition. His mother has been released from hospital after being treated for minor injuries.

Nicola's sister-in-law said the fire may have been started by Dillon playing with a lighter, but fire officials are still investigating and have not released an official cause.