Residents of a group of townhouses at Elermore Vale have been woken by a torrent of water flooding their homes.
A water main burst just before 4.00am on Friday.
Windows blew out as thousands of litres of water inundated 12 villas in Taurus Street and Aries Way.
A woman in one of the townhouses could be heard calling out for help - it's understood she's been rescued.
Several residents were evacuated but thankfully, no-one's been injured.
Emergency services are still at the scene - Hunter Water crews have managed to shut off the water.
