Kurdish militants who have waged a 40-year insurgency in Turkey declared a ceasefire on Saturday in what could mark a significant boost to President Recep Tayyip Erdogan's government, two days after their imprisoned leader called for the group to disarm.

French President Emmanuel Macron spoke to Ukrainian President Volodymyr Zelenskiy and U.S. President Donald Trump on Saturday and called for calm in an interview following Friday's clash between the U.S. and Ukrainian leaders at the White House.

Outlawed Kurdish group the PKK has declared a ceasefire with Turkey after its jailed leader Abdullah Ocalan called on the movement to lay down its arms and dissolve. In Saturday's statement, the PKK said it hoped Turkey would release Ocalan, who has been imprisoned in solitary confinement since 1999, so he could lead a process of disarmament.