JERUSALEM - The parents of an Israeli soldier held by Hamas-allied militants have petitioned Israel's supreme court to block a truce deal with the militant group as long as their son remains in captivity.

Noam and Aviva Schalit petitioned the court today, claiming that part of the deal included opening the Gaza Strip's crossings. They said this would allow their son's captors to smuggle him out and harm efforts to free him.

s part of their petition, the Schalits published a handwritten letter, penned by their son, which was delivered two weeks ago by representatives of former U.S. president Jimmy Carter.

Gilad Schalit was abducted near the Gaza border two years ago. He has not been seen since, but a recording of his voice and two previous letters he wrote have been released.