Four arrested after Adelaide break-in

Four teenagers have been arrested after a break-in at an Adelaide post office.

Two 14-year-old girls and a 16-year-old boy were detained along with an 18-year-old man after their car crashed into a retaining wall following a police pursuit on Monday morning.

Two of the teenagers were treated in hospital for minor injuries.

Police are still looking for a fifth person who ran off after the crash.

They say the car was earlier spotted driving away from the Camden Park Post Office.