Iran has established underground weapons factories for Hezbollah inside Lebanon, part of a broader Iranian armament effort that has helped Hezbollah expand its stockpiles to many times what it was 10 years ago, during the Second Lebanon War.

The source of the information for the story is somewhat dubious. The story broke in a small Kuwaiti newspaper called Al-Jarida, which is widely regarded in the Arab world as an Israeli government mouthpiece. The report cites an anonymous source, again raising questions of its veracity.

However, the story has gained traction with many Israeli news organizations, and understandably so. If what the report claims is true, it adds to the ongoing case made by Israel that Iran continues to arm its enemies in violation of United Nations Security Council resolutions.

The report says Iran has built a network of deep buried weapons factories inside Lebanon for Hezbollah. These factories each produce separate components of weapon systems, like the ubiquitous short and medium range rockets Hezbollah famously fires into Israel during periods of conflict, which are then fully assembled at a different location. This is in an effort to prevent Israeli airstrikes from completely destroying their weapons production in one attack.