At least four people have been killed and eight others injured after a gunman opened fire near the southern Turkish city of Mersin, according to local media reports.
The attack reportedly began inside a restaurant near Tarsus, where two victims were killed, while two others lost their lives at separate locations as the suspect fled the area.
Authorities have launched a large-scale manhunt involving helicopters to track down the assailant, who reportedly escaped in a vehicle after the shooting.
Local news agencies identified the suspect as a 17-year-old allegedly armed with a shotgun.
The incident comes weeks after two separate shooting attacks involving teenagers in Turkey, incidents that left several people injured and others dead, including schoolchildren.