Officers investigating four car fires in the Bitterne and Hedge End areas are appealing for witnesses.
All the fires have been deliberately started on various days this month, in the early hours of the morning. The latest were on September 6, in Glenfield Avenue and Terrier Close, Hedge End.
Anyone with any information should contact CID at Eastleigh police station on 101 or call Crimestoppers, the charity, anonymously on 0800 555 111.