Two teenage girls are still in a critical condition after being shot in the head at a high school in America.

The gunman, named as student Jaylen Fryberg,opened fire in the cafeteria at Marysville Pilchuck High School in Washington state before shooting himself dead.

Two boys, aged 14 and 15, were also injured and are in intensive care at a hospital in Seattle.

Joanne Roberts is the chief medical officer in charge of the girls' care.

She says their families remain hopeful.