Donald Trump has welcomed home American schoolteacher Marc Fogel after he was released from prison in Russia, with the US president saying Vladimir Putin had got "not much" in return.
Trump said that another detainee would be freed on Wednesday without giving their name.
Mr Fogel, a 63-year-old former diplomat, landed at Joint Base Andrews just outside Washington DC late on Tuesday evening, before travelling to the White House.
His release was negotiated as part of an exchange with Russia, US National Security Advisor Mike Waltz said earlier. Russia did not comment on the release immediately.