Police have arrested a 26-year-old Diamond Creek man during an investigation into a suspicious Wollert grassfire that occurred on Tuesday 27 January.
The man was interviewed and released after arrest but is expected to be charged on summons.
According to VicEmegency, the fire started in a waste pile on Summerhill Road about 1.30pm.
Emergency services were called to the blaze, and the fire was put under control about 2.45pm.
Investigations are ongoing into the cause of the alleged suspicious grassfire, there were no injuries reported.
Anyone who witnessed the incident, has vision or information is urged to contact Crime Stoppers on 1800 333 000 or www.crimestoppersvic.com.au.
More to come.

















