Gunman kills four and injures eight in Turkey, media reports say

A gunman has opened fire in southern Turkey, killing four people, local media report.

Another eight people were injured in the Tarsus district, Mersin province, according to Turkey's Hurriyet newspaper and CNN Türk.

Monday's shooting is reported to have started at a restaurant, and the suspect then fled in a car.

Police have launched a large-scale operation with helicopter support as they try to apprehend the gunman.

Turkish media reports say two people were killed in the restaurant. They are believed to be the owner and an employee.

The gunman then continued shooting, killing a shepherd grazing his sheep nearby and a lorry driver.

The suspect's identity and motives were not immediately known.