CHICAGO (CBS) – A grandmother and her two grandchildren escaped a fire in their Clearing neighborhood home on Chicago’s Southwest Side on Friday, when a smoke detector alerted them to the blaze.

The fire broke out around 11 a.m. at 6143 S. Meade Av. The grandmother was in a bedroom with her two grandchildren when she heard a smoke detector going off, police said.

All three managed to escape safely.

A fire department spokesman said the fire was extinguished about 11:40 a.m. and no one was injured. The Office of Fire Investigations is looking into the origin and cause of the fire.

The American Red Cross provided assistance to four adults and three children, spokeswoman Veronica Vasquez said. The family had insurance which covered their food and shelter needs.

“We just provided them with comfort assistance,’’ said Vasquez.

It was not known how much damage the home sustained.

(The Sun-Times Media Wire contributed to this report.)