Security forces killed 32 Kurdish militants in Turkey's mainly Kurdish southeast at the weekend, army and security sources said on Sunday, escalating the reignited conflict in the region.

It was one of the bloodiest weekends since the three-decades-old insurgency resumed last July, scuppering a peace process launched by Ankara with the jailed leader of the militant Kurdistan Workers Party (PKK) in late 2012.

In the region's largest city, Diyarbakir, a soldier and a police officer were killed on Sunday when they came under explosives and rifle fire in a clash with rebels in which 14 security personnel were also wounded, security sources said.