KIEV, Rabi'II 12, 1436, February 01, 2015, SPA -- Thirteen Ukrainian soldiers have been killed in fighting against Russian-backed separatists in eastern Ukraine in the past 24 hours, a Kiev military spokesman said on Sunday, Reuters reported. A further 20 soldiers were wounded in the clashes, spokesman Volodymyr Polyovy said in a televised briefing. --SPA 15:25 LOCAL TIME 12:25 GMT www.spa.gov.sa/w