After being critically injured in a plane crash that killed four, DJ AM and Travis Barker are expected to recover from their wounds, a hospital official says.

Dr. Fred Mullins told the Associated Press that the two are being treated for second and third degree burns, but will recover.

Mullins also says recovery can take up to one year.

Barker suffered burns to the torso, while DJ AM suffered burns to his hands and head.

Both are in critical, but stable condition.