One person has died and six others, including police officers, have been hospitalised after a gas leak at a restaurant.
Five police officers and another person were taken to hospital on Tuesday morning after going to the site in  Sydney's northwest.
One person was found dead about 9.15am when emergency services responded to reports of the gas leak on Garfield Road at Riverstone.
Hazmat crews and ambulances could be seen parked out the front of the premises as investigations into the leak continue.
NSW Police will provide an update later on Tuesday.