Firefighters from Sanquhar in Upper Nithsdale have been called out to the fires around the town.
They have managed to put them all out without serious damage but suspect it is the same person starting all of them.
Three fires were set off in and around Sanquhar within the space of four hours on Wednesday and then a fourth was discovered alongside the A76 Dumfries - Kilmarnock Road at Guildhall Bridge, Kirkconnel.
The latest was on Friday night at Mary’s Street at Sanquhar where firefighters managed to put out the flames using beaters.A Dumfries and Galloway Fire and Rescue spokesman said:
“The fires were all put out by the firefighters using beaters and hoses.“The causes of the fires have been put down as suspected to be deliberate by an unknown person or persons.”
A woman has been jailed for six years at Carlisle Crown Court after admitting setting fire to her house - while her two year old daughter was asleep inside.
Thirty five year old Deborah Ann Donald was also charged with perverting the course of justice after she blamed the arson - at her home in Wastwater Avenue in Workington - on two other women. Andy Burn reports.
A woman who set fire to her house with her two year old daughter was inside has been jailed for six years at Carlisle Crown Court.
35-year-old Deborah Donald, from Wastwater Avenue in Workington, was also accused of perverting the course of justice by blaming the arson on two other women. In court, she pleaded guilty to three charges including arson, perverting the course of justice, and child cruelty.