Turkish authorities on Saturday detained a key suspect in a bombing that killed seven people and wounded 23 in the biggest attack of its kind in months in the strife-hit southeast, security sources said.
Three migrants were hospitalised after a brawl in a camp on the Greek "hotspot" island of Chios, the ANA news agency said, as the country prepared to begin returning migrants to Turkey under an EU deal.
US President Barack Obama met his Turkish counterpart Recep Tayyip Erdogan in Washington, the White House said, amid tensions over press freedom and the war in Syria.
Six police officers were killed and at least 23 people wounded on Thursday in a bomb attack targeting a Turkish police vehicle in the Kurdish-majority southeastern city of Diyarbakir.
A first batch of 500 migrants are set to return from Greece to Turkey on Monday under the terms of an EU deal reached this month, a European Commission source said.
Turkish police on Tuesday detained at least 20 people in a nationwide operation aimed at cracking down on the trafficking of migrants seeking to reach the European Union, reports said.
A local elected official was killed in Turkey's strife-hit southeast on Monday after a weekend of violence that also claimed the lives of almost 30 militants and soldiers, according to security sources.
A total of 1,662 migrants have landed on Greek islands near Turkey since a landmark EU-Turkish deal on curbing the influx took effect on Sunday, a Greek coordination panel said.
Flimsy boats packed with migrants continued to land in Greece from Turkey on Sunday despite the start of a landmark deal between the European Union and Ankara to stem the massive influx.
A Turkish jihadist with links to the Islamic State carried out the suicide bombing that killed four foreigners on a major shopping street in Istanbul, Interior Minister Efken Ala said Sunday.
At least two people were killed and seven wounded in a suicide bombing in a major shopping and tourist district in central Istanbul on Saturday, CNN Turk reported.
A plan to return all irregular migrants arriving on Greek islands back to Turkey could take effect on Sunday if EU leaders strike a deal with the Turkish prime minister, senior EU officials said.
