Chicago school shooting leaves 2 dead at Mark Twain Elementary School

Two adults have died following a shooting inside an elementary school in Chicago's Garfield Ridge neighbourhood on Monday afternoon, authorities said.

The shooting was reported at about 3:50 PM at Mark Twain Elementary School on South Lotus Avenue, near West 52nd Street, according to fire officials.

Chicago police said officers found two adults unresponsive inside the school building.

A 48-year-old woman had suffered a single gunshot wound to the head. She was taken to a nearby hospital, where she was later pronounced dead.

A 63-year-old man was also found with a gunshot wound to the head. He was taken to hospital and pronounced dead, authorities said.

Police described the woman as a victim but did not identify a suspected shooter or provide details about who may have fired the shots.

Authorities have not released the identities of either person killed or provided information about their connection to Mark Twain Elementary School.