US soldier Bowe Bergdahl: 'Our son needs time to decompress'

A US soldier who has been released after nearly five years in captivity by the Taliban in Afghanistan needs time to ''decompress'', his parents have told a news conference.

Jani and Bob Bergdahl also said they had not yet spoken to their son, Sgt Bowe Bergdahl, 28, who was handed to US forces on Saturday in exchange for five Guantanamo Bay detainees.

Jani Bergdahl began by reading a letter to her son.