Two armed men involved in an Adelaide home invasion have avoided capture and police lockdowns in the area have been lifted.
Police say the men, of Asian appearance, were armed with knives and guns when they forced their way into a home at Prospect on Monday morning.
Two men and two women were inside and a man suffered a minor injury after being struck in the head.
Percy Street, Farrant Street and Prospect North Primary School were in lockdown for most of the day as police searched the area.
Police say they arrested a third man, found in the area in a parked car, in possession of a Molotov cocktail and ammunition.
He has been charged with carrying an offensive weapon and insecure ammunition and bailed to appear in the Holden Hill magistrates court on August 5.
Detective Chief Inspector Tony Crameri said police believe the invasion was a targeted attack.
"We believe that the offenders know the victims and it was in relation to a debt," he said.