Knuckle dusters used in home invasion

A man armed with knuckle dusters has assaulted two teenagers while ransacking a home on Sydney's north shore.

After invading the Mosman home on Sunday evening, the man fled in a car but was caught about 10 minutes later on a nearby street, police said.

His car was searched and a set of knuckle dusters was found.

Police alleged the 23-year-old assaulted two of the five teenagers who were at the Mosman home.

None required medical treatment.

Several charges, including two counts of assault, have been laid against the man.

Bail was refused and he's due before Downing Centre Local Court on Monday.