Israeli military expert Amir Bohbot revealed in a report published by Israel's Walla News website April 3 said that in 2006, Iran opened a route to smuggle missiles and ammunition to Hamas in the Gaza Strip through Yemen and Sudan, thousands of kilometers from the Israeli coast. 

The smuggling operations were led by Hamas’ military commander Mahmoud al-Mabhouh until he was assassinated by Israel in Dubai in January 2010, Bohbot said, without specifying who succeeded Mabhouh.

Bohbot, who received his information from Israel's Mossad intelligence agency, said the maritime arms smuggling route starts from Iran toward Yemen, and from there reaches Sudan. Yemen and Sudan are on opposite sides of the Red Sea. From Sudan trucks head for the desert on a 1,000-kilometer (620-mile) journey to Egypt, where smugglers cross the Suez Canal and transport the weapons through the tunnels dug under the Gaza Strip with the help of Bedouins. He said smugglers routinely move weapons from Sudan on behalf of Hamas. 

A source told Al-Monitor that other weapons are shipped through the Suez Canal and then surreptitiously delivered to Gaza frogmen.