A fire in Victoria’s East Gippsland region is being treated as suspicious.

The fire started along Walshs Road in rural Yinnar South at 10.45am on Sunday.

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Grass along the road and in a nearby paddock was burnt before the fire was extinguished by CFA crews.

No one was injured and Victoria Police say the cause of the blaze remains unknown but is being treated as suspicious.

Police yesterday arrested a man in relation to a grassfire in Epping on Melbourne’s outskirts.

The 34-year-old man, of no fixed address, was arrested in Vearings Road about 12.50pm and assisted police with their inquiries.

The fire started in grassland along the Hume Freeway and Cooper Street about 10.15am.

No one was injured in the blaze and no properties were damaged.

Just after 2pm fire crews stopped the spread of the fire that threatened homes and businesses.

Victoria Police Assistant Commissioner Debra Abbott said members of the public alerted officers to the man acting suspiciously near the Epping fire on Saturday morning.

She said he wasn’t a target of Operation Firesetter that focused on known fire bugs.

“It was actually a community response to suspicious activity,” she told reporters on Saturday.