The humanitarian organization Doctors Without Borders aided, presumably inadvertently, a Palestinian Arab who planned to assassinate Israeli Prime Minister Ehud Olmert, security officials released for publication Thursday.

Matzab Bashir, a resident of the Gaza town of Dir al Balah, was arrested in Jerusalem in April. He later admitted to gathering intelligence with the intent of attacking Olmert and other high-profile Israeli officials.

Bashir was able to travel freely between Gaza and Jerusalem because Doctors Without Borders had helped him attain the status of "humanitarian worker."

A number of independent and UN aid agencies have been accused in the past of aiding Palestinian terrorists against Israel, be it through deliberate or unwitting negligence.