Jonathan Pollard, an American convicted of spying for Israel, is set to be released on parole from a US prison.
The former US Navy intelligence officer was caught selling classified documents in 1985 and given a life sentence.
Pollard’s parole terms bar him from leaving the US without permission for five years.
He has said he wants to move to Israel to be reunited with his second wife.
Successive Israeli governments have tried to secure Pollard’s freedom, in a case that has caused tension between the two countries.
Last year it was reported that the US was considering freeing Pollard in exchange for the continuation of peace talks and significant concessions from Israel to the Palestinians.