Turkish forces crossed into Iraq to pursue Kurdish militants after dozens were killed in the deadliest attacks for years, as protesters assailed offices of the main pro-Kurdish party in a night of nationalist-tinged violence.
Turkey's almost month-long campaign of air strikes against the Kurdistan Workers' Party (PKK) in the Turkish southeast and northern Iraq will weaken but cannot destroy the Kurdish militant group.
President Recep Tayyip Erdogan vowed that Turkey would press on with a campaign against Kurdistan Workers Party (PKK) militants "until not one terrorist remains".
Turkey's Kurdish political leader Selahattin Demirtas urged the world to denounce Ankara's new "unjust war" on rebel Kurds and asked the EU to push clearly for a truce.
German Foreign Minister Frank-Walter Steinmeier urged Turkey not to abandon the Kurdish peace process despite an upsurge in tension and violence.
NATO strongly backed Turkey's fight against Islamic State militants in Syria at emergency talks.
Turkey's foreign minister said that Kurdish rebels "never respected" the peace process with Ankara, with a ceasefire now in tatters after a series of attacks and cross-border offensives.
Turkish President Recep Tayyip Erdogan said that Turkey will never allow the establishment of a Kurdish state in Syria after major gains by Kurdish fighters
Turkish President Recep accused the main Kurdish party in Syria of not wanting Kurdish peshmerga fighters from Iraq to help it fight Islamic State jihadists
US President Barack Obama called his Turkish counterpart Recep Tayyip Erdogan and they pledged to step up the fight against the Islamic State group in Syria.
A Kurdish woman fighter is leading the battle against Islamic State jihadists in the Syrian battleground town of Kobane.
Briyar Kamal, a 24-year-old Kurdish student, but instead of relaxing during his summer holiday he is fighting jihadists who have overrun swathes of Iraq.
Iraq's Kurdish region claimed disputed northern oilfields on Friday in another blow to efforts to forge a united front against a jihadist-led onslaught, as twin bombings killed 28 people.
Turkish soldiers on Wednesday fired tear gas and water cannon at Kurds protesting plans to build military barracks in the southeast of the country.
Kurdish rebels are due to begin their much-anticipated withdrawal from Turkey into their stronghold in northern Iraq on Wednesday, a major step towards ending a decades-long conflict that has left tens of thousands dead.
Russia will host a top opponent of Syrian President Bashar al-Assad on Wednesday hoping to find common ground with one of the most scathing critics of its refusal to turn against the Damascus regime.