PORTSMOUTH, NH (CBS) – Fire tore through a condo building Friday evening in Portsmouth, New Hampshire.

Flames broke out around 6:30 p.m. inside the building at 135 Bow Street.

WBZ NewsRadio 1030′s Mark Katic reports

The fire appears to have started in a chimney.

Several streets in the area were shut down while firefighters from Portsmouth and surrounding communities battled the flames.

The riverfront building housed 18 luxury condos. A two bedroom condo in the building recently sold for $775,000, and many others in the building have been assessed in the same price range.

According to officials, as many as six condos were destroyed, while others suffered smoke and water damage.

Costs of the damage could be in the millions of dollars.

There were no reports of any injuries.