The main US political parties have clashed over the deal to swap five Guantanamo Bay detainees for a Taliban-held soldier, with Republicans warning it could put American lives at risk.

Senator John McCain said the detainees, who were transferred to Qatar, were some of the "highest high-risk people".

Afghanistan also attacked the deal, saying handing prisoners to a third country was against international law.

Sgt Bowe Bergdahl, 28, was handed to US forces in Afghanistan on Saturday.

In an emotional address on Sunday, his father, Robert Bergdahl, said he was proud how far his son was willing to go to help the Afghan people, but warned that his recovery would take a long time.

He said they had not yet spoken to the soldier, who is in a good condition and currently undergoing medical care at a US military hospital in Germany.

(BBC)