Four children have been charged as part of an investigation into a number of incidents linked to the ongoing tobacco dispute.
Warrants were executed simultaneously at three residential addresses in Springvale, Mulgrave and Pakenham about 7am on Friday.
Two boys and two girls were arrested and charged on Saturday morning.
The charges relate to an aggravated burglary in Wonga Park, as well as two arson attacks at a Mill Park restaurant and a tobacconist in Ballarat the previous week.
A white Isuzu D Max and a silver Ford Ranger were stolen during an aggravated burglary in Wonga Park between 10pm on February 19 and 7am on February 20.
The Ford Ranger was then utilised in an arson attack at a reception centre in Thomastown on February 22.
It was later located burnt out in Bundoora.
A 20-year-old St Albans man was charged on Thursday in relation to that incident.