Israel says it has found 40 long-range rockets on board a ship it intercepted in the Red Sea on Wednesday.
The discovery was made following the forced unloading of the vessel’s cargo at the Israeli port of Eilat.
Uncorroborated video issued by the Israeli military showed several M-302 rockets which have a range of 160 kilometres.
They claim they were sent by Iran and were destined for Palestinian militants in Gaza.
A bag of cement was filmed as evidence.
Iran and Hamas have dismissed the find as propaganda.
The Panamanian-flagged Klos-C was intercepted by Israeli naval commandos as part of an operation dubbed “Full Disclosure”.
The ship had been en route for Sudan where Israel claims the rockets would have been offloaded and shipped overland via Egypt’s Sinai Peninsula to Gaza.
Sudan has also denied any involvement.