KABUL, Rabi'I 23, 1437, January 03, 2016, SPA -- An Afghan Mi-17 military helicopter crashed on Sunday after a technical failure during a training exercise, killing three air crew and wounding another in Logar province, south of the capital Kabul, the Defence Ministry said, according to Reuters. The Mi-17, a transport and attack helicopter, is the mainstay of the fledgling Afghan air force, which has around 50 of the Russian-made machines. Another 36 are used by Afghan special forces. --SPA 15:52 LOCAL TIME 12:52 GMT www.spa.gov.sa/w