Haaretz:

A senior Iranian official admitted for the first time Friday that Tehran did indeed supply long-range Zelzal-2 missiles to Hezbollah.
Mohtashami Pur, a one-time ambassador to Lebanon who currently holds the title of secretary-general of the “Intifada conference,” told an Iranian newspaper that Iran transferred the missiles to the Shi’ite militia, adding that the organization has his country’s blessing to use the weapons in defense of Lebanon.
Pur’s statements are thought to be unusual given that Tehran has thus far been reluctant to comment on the extent of its aid which it has extended to Hezbollah.