SA boys attempt robbery with screwdriver

Two 12-year-old boys armed with a screwdriver have allegedly tried to rob a man in Adelaide.

The victim was threatened near Kilburn Railway Station on Monday afternoon but wasn't injured and the boys left empty-handed before throwing rocks at trains, police say.

They were bailed to appear in the Elizabeth Youth Court on May 23 charged with attempted aggravated robbery, being on a premises unlawfully and throwing missiles.