Man charged over SA stabbing

One man is in hospital with serious injuries and another has been charged with attempted murder after a stabbing in Adelaide.

Police and paramedics were called to Currie Street in the CBD early on Sunday morning where they treated a 21-year-old for life-threatening injuries.

He was taken to Royal Adelaide Hospital where he remains in a serious but stable condition.

His alleged attacker fled the scene but was detained in a nearby Hindley Street business about two hours later.

The 20-year-old did not apply for police bail and will appear in Adelaide Magistrates Court on Monday.

Police say the charged man and victim of the attack are known to each other.