Two teenagers killed by shelling in Ukraine's Donetsk

KIEV (Reuters) - Two teenagers were killed by shelling while out playing on a school sports field in the rebel-controlled city of Donetsk in eastern Ukraine on Wednesday, the city's administration said. The deaths came a day after a separatist leader was sworn in as head of a self-proclaimed 'people's republic' in Donetsk, and a tenuous ceasefire declared on Sept. 5 showed further signs of strain. "As a result of a missile strike from the conflict zone two teenagers were killed and a further three were injured on a school sports field," the administration said in an online statement. Locals said the children were killed about 2-3 km (1-1.5 miles) from Donetsk airport, which separatists have been trying to seize from government forces despite the two-month-old truce. More than 4,000 people have been killed in fighting since pro-Russia separatist rebellions broke out in the industrialized east following the overthrow of Ukraine's Moscow-backed leader Viktor Yanukovich in February. (Reporting by Natalia Zinets; Writing by Alessandra Prentice; Editing by Richard Balmforth and Andrew Heavens)