Residents whose homes are threatened by a fast-moving bushfire near the small Victorian town of Narrawong have been warned to leave.

An emergency warning has been issued for the blaze in Victoria’s southwest and a relief centre has been set up in the town and community meeting held for residents.

The fire has already burnt through more than 270 hectares.

It is travelling in a southerly direction from Golf Course Road, Mt Clay State Forest and towards Mt Clay fire tower, a Department of Environment and Primary Industries spokesperson says.

Residents in the vicinity of the bushfire have been warned they should leave now, before conditions become too dangerous.

The message applies to residents in the vicinity of Blackers Road, Devlins Road, Beavis Road, Brabender Lane, Kerrabrae Road and Angelino Road.

Community meetings were held at the Narrawong Hall and Portland Civic Centre on Tuesday night and a relief centre has been set up at the Portland Civic Centre.

Several roads have been closed and should be avoided.