An unoccupied house in Keith Avenue, Moe was destroyed by fire about 10.30pm, Saturday, 10 September.
It took the CFA until 4am to extinguish the fire and an arson chemist attended the scene to conduct a forensic investigation the following day.
Police are investigating the incident and believe it to be suspicious.
The house had been unoccupied for a number of years and there was a small suspicious fire in the house in July which caused some furniture damage.
The July fire remains unsolved.
Police appeal to anyone who may have been in the area and witnessed anything suspicious to phone Crime Stoppers on 1800 333 000.
Police are calling for witnesses to an alleged assault and theft which occurred in Morwell about 2.30pm on Friday, 9 September.
A 40 year-old man was walking along Waterhole Creek, near the nursery at the end of Peter Street, Morwell, towards Hourigan Road.
He was pushing a trolley carrying his bags and shopping when he was approached by a group of three men and one woman walking in the other direction.
Police said the men in the group allegedly assaulted the man by kicking and punching him and stole his mobile phone.
They said the woman allegedly stole a small backpack from the man’s trolly.
The offenders were last seen walking towards Princes Drive.
They are described as three men aged between 30 and 40 years old and of indigenous appearance.
One man was described as being clean shaven with a stocky build, another with solid build and a scruffy beard wearing a black and white long sleeve top.
The woman was described as being aged between 17 and 22, with long black hair, of indigenous appearance and wearing a white top.
The man received cuts and bruising to his face and head and later phoned police from a payphone.
He recalled seeing a man and woman walking a dog on the opposite side of Waterhole Creek and believe the offenders left after seeing this couple.
Police are appealing for any witnesses who may have been walking at Waterhole Creek, Morwell at this time to phone Crime Stoppers on 1800 333 000.