DIYARBAKIR, Turkey (Reuters) - A 15-year-old Syrian boy was killed and two men were wounded when Turkish soldiers opened fire on them as they tried to cross the border into Turkey, security sources said on Thursday.
Turkish soldiers fired on the three Syrians on Wednesday evening after issuing several warnings as they crossed the border near the Syrian town of ad Darbasiyah into the Kiziltepe district of Turkey's Mardin province, the sources said.
The incident occurred as Turkey tightens security at the border. It aims to completely seal off the 911-km (566-mile) frontier by next spring with the construction of a concrete wall topped with razor wire.
Officials have said the wall aims to stop illegal migration from Syria into Turkey, which already hosts nearly 3 million Syrian refugees who have fled the conflict there.
Writing by Ece Toksabay; Editing by Daren Butler and Ralph Boulton