Israel's prime minister is inspecting dozens of rockets on a ship that navy commandos intercepted in the Red Sea last week, allegedly on their way from Iran to the Gaza Strip.

Benjamin Netanyahu's tour of the seized weapons on Monday is part of a PR blitz aimed at persuading the international community to toughen its position in nuclear talks. Netanyahu says the shipment shows that Iran's new leadership cannot be trusted.

World leaders have shown little reaction to last week's raid, signaling that Netanyahu faces a tough sell.

Iran has denied being behind the shipment, and militant groups in Gaza say they were not connected to the weapons.

Israel believes Iran is trying to build a nuclear weapon and fears the negotiations will leave much of Iran's nuclear program intact.