President Shimon Peres is accusing North Korea of smuggling missiles to Iran.
Peres said North Korea has become a "duty free for long-range missiles and nuclear weapons." He says some of the weaponry flows to Iran and from there to militants in Lebanon and Syria.
Israel considers Iran its greatest threat because of suspicions about its nuclear program. Those concerns have been compounded by Iran's frequent threats to destroy Israel.
Syria and Hizbullah have denied recent accusations that Syria smuggled Scud missles to the Hizbullah.
North Korea is believed to sell missiles, missile parts and other weapons to countries such as Iran, Syria and Myanmar.