An Iranian weapons cache in Afghanistan...

Surprise, surprise, the Iranians are meddling...

The discovery of a weapons cache in western Afghanistan has raised concerns that Iran is interfering in the war-torn country, much like it did in Iraq, by supplying weapons used to attack and kill U.S. and coalition troops, U.S. officials tell FOX News.

Afghan and NATO forces uncovered the weapons cache on Aug. 29 in Herat. It included a small number of Iranian-made "explosively formed penetrators," hyper-powerful roadside bombs similar to the weapons used to kill U.S. forces in Iraq, a senior U.S. Defense Official told FOX News.

Also seized during the raid were 107 Iranian-made BM-1 rockets and dozens of blocks of Iranian C4 plastic explosives.

There are questions about when these weapons entered Afghanistan, but a top U.S. military official tells FOX News that an Iranian rocket was recently fired at a base in Herat. Additional intelligence suggests that Iranians have been providing support directly to the Taliban.