Five Taliban detainees being released in a deal that freed US Sergeant Bergdahl have left Guantanamo prison in US military aircraft en route to Qatar, a US Defense official said.
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A team of detectives and specialists is set to begin a painstaking excavation of the area where Ben is thought to have gone missing in 1991.
The foreign secretary's suggestion last week's bombing of an aid convoy might constitute a war crime prompted an angry response from Moscow.
Goals from Charlie Austin, Dusan Tadic and James Ward-Prowse consigned Slaven Bilic's men to their fourth straight Premier League loss.