July 15 (Reuters) - U.S. President Donald Trump has threatened to attack a site linked to Iran's nuclear programme known as Pickaxe Mountain, a fortified facility buried deep underground near one of Tehran's main nuclear sites.
"We're going to take out Pickaxe Mountain. Tell the Iranians to be ready," Trump said in a July 13 interview on the Hugh Hewitt Show.
The threat reflects escalating tensions as Tehran and Washington trade fire in the Gulf, setting back efforts to end the conflict.
Here's what we know about Pickaxe Mountain:
WHERE IS IT?