Detectives have launched an investigation into four deliberate fires in the Bridgeton area of Glasgow.
The first incident was reported to police at around 12.30am on Thursday, March 5 when a letterbox was set on fire at a property on Mill Street.
A short time later, two building closes within Main Street went up in flames.
Discarded items in a close landing were then set on fire at around 9.45pm on Wednesday, March 11.
The fires were quickly extinguished by the Scottish Fire and Rescue Service and nobody was injured as a result.
Police are treating the incidents as wilful fire raising.
Detective constable William Corkindale, of Glasgow CID, said: “One of the fires has caused extensive damage to the building and all four could have caused serious harm to the residents within.
“I would urge anyone who may have been in the Main Street and Mill Street area of Bridgeton at the time or those who may have witnessed suspicious activity in the area to contact police.
“I would also ask anyone with CCTV or dashcam footage of the area to get in contact.”
If you have any information, call 101.