Smoke from a fire has caused poor visibility eastbound towards Nar Nar Goon along the Princes Highway in Pakenham.
It appeared about 100 metres of grass alongside the road between Dore Road and Mt Ararat North Road was on fire Thursday morning, 20 January.
A FRV spokesperson said FRV and CFA crews were called to the incident on the Princes Freeway just before 8.55am, after a caller to Triple Zero (000) reported a grass fire was spreading.
Firefighters arrived on scene to find multiple spot fires, and worked to bring them under control in 13 minutes, the spokesperson said.
They will remain on scene to ensure it is safe.
FRV and CFA are working alongside Victoria Police on scene.
