Third person dies following SA crash

A road crash north of Adelaide over the long weekend has claimed a third life.

A 32-year-old man died in hospital on Thursday, police say.

It comes after a 14-year-old boy died in hospital on Wednesday and a 36-year-old woman died at the scene of the crash on Monday.

Four other people were injured when two cars collided at the intersection of the Copper Coast and Yorke highways.

A 40-year-old man who was driving a third car has been reported for causing death by dangerous driving and aggravated driving without due care.

He will be summonsed to appear in court at a later date.