A Philippine passenger jet heading to Japan was forced to turn back Monday after smoke was detected in the aircraft, while the wheel of a second plane caught fire after it aborted taking off from a separate airport, an aviation official said.

Ten members of the Turkish security forces were killed in two separate attacks in southeastern Turkey on Monday blamed on the outlawed Kurdistan Workers' Party (PKK), local media reported.

Two soldiers and two village guards -- locals employed to combat Kurdish militants -- were killed and six others wounded in a roadside bomb attack in Mardin province, the state-run Anadolu news agency reported. 

Boris Johnson on Monday made his first visit to Turkey as Britain's foreign minister, months after leading the successful "Brexit" campaign that played on anti-Turkish sentiments.

Lithuania said Monday it is in talks to buy Norwegian anti-aircraft missile systems to address the defense gap on NATO's eastern flank, amid concerns over Russia.

U.S. Energy Secretary Ernest Moniz, an architect of the 2015 Iran nuclear deal, rejected Monday complaints from Tehran that Washington had not met its side of the bargain.

Fidel Castro appeared in state-run media Monday for the third time in less than a week, which is extremely rare for the father of the Cuban revolution.

Castro, 90, who ceded power to his brother Raul in 2006, received visiting Chinese Prime Minister Li Keqiang at home on Sunday.

The EU warned Switzerland on Monday over a vote by one of its cantons backing curbs on migrants, an issue being closely watched in London as a possible template for Brexit negotiations.

Iranian conservatives called on former president Mahmoud Ahmadinejad to stay out of next year's election following a speech by supreme leader Ayatollah Ali Khamenei on Monday.

A man in his sixties opened fire on shoppers outside a supermarket near Paris on Monday, severely injuring two people before fleeing the scene, police sources said.

German international broadcaster Deutsche Welle said Monday it had filed a civil complaint after a Turkish minister's office confiscated a taped video interview with him.