Four kittens have been rescued as fire tore through a garage at Charlestown on Wednesday morning.

Firefighters were called to a home in Kahibah Road just before 6.00am to find a separate fibro and tin  garage up in flames.

They took more than hour to extinguish the fire but managed to stop the flames from spreading to the adjoining home.

Newcastle Fire Command says four kittens were rescued and handed to police.

The cause of the fire has not yet been determined.