Teenager injured in three-car SA crash

Andi Yu

A teenager has suffered serious head injuries after a three-car crash southeast of Adelaide.

Police are investigating what led to a collision between two sedans and a four-wheel drive at the intersection of Morphett Street and Adelaide Road at Mount Barker on Friday night.

A 16-year-old boy in one of the vehicles was taken to the Royal Adelaide Hospital and is in a serious but stable condition.