OXLEY police have spent another day investigating a suspicious housefire that destroyed a house at the weekend.
Detectives are investigating if someone deliberately lit the fire on Quia Road in Gunnedah on Friday night with the cause still under investigation.
The single-story weatherboard home erupted in flames shortly before 10pm, and quickly took hold, with the charred shell all that remains after the roof caved in.
"Further investigations are being made in relation to the housefire, which is being investigated by detectives who have already done canvasses of the scene for witnesses and examined CCTV," Oxley Acting Inspector Karen Peasley told the Leader on Monday.
"There are still a few witnesses that investigators need to get statements off but investigations are continuing and anyone with information is urged to contact Oxley police."
No one was home at the time of the fire.
It was one of two fires overnight on Friday for local RFS and Fire and Rescue NSW crews.
The shed fire at Piallaway continued to burn on Monday, after it went up in flames in the early hours of Saturday.
The blaze destroyed 18,000 tonnes of barley and more than 6000 bales of hay in what firefighters say is one of the biggest hay shed blazes they've seen in recent years.
Crews were continuing to monitor the scene on Monday, but police have confirmed it's not being treated as suspicious.