Two of four men who allegedly forced their way into a Mawson home in July claiming to be police officers were arrested on Tuesday afternoon.

The group purported to be acting on a search warrant, threatened the occupant with a firearm and other weapons before assaulting him, leaving him with serious injuries.

Police believe the man was mistakenly targeted.

Police arrested a 37-year-old Rivett man and a 47-year-old Googong manand charged them with aggravated burglary – intent to commit theft, aggravated robbery, assault, impersonating a territory public official, minor theft and property damage.

The 47-year-old has also been charged with breach of parole.

The 37-year-old has also been charged with knife possession.

Investigations into the identities of the other two men are ongoing.

Anyone with information call 1800 333000, or via the Crime Stoppers ACT website.