Speaking in an interview on the #Hugh Hewitt Show, Trump said: "We're going to take out Pickaxe Mountain. Tell the Iranians to be ready."

He said the United States was closely monitoring the site and indicated it could be struck in the near future.

"We're watching (Pickaxe Mountain) closely. We see no ⁠activity there. They're not doing well with their nuclear situation. Every time we hear about it, we blow it up. So they don't like talking about it. But we'll probably give Pickaxe a shot relatively soon," Trump said.

Pickaxe Mountain is located near Iran's heavily damaged Natanz uranium enrichment facility.

The fortified site contains two deeply buried tunnel complexes that experts assess are beyond the reach of even the most powerful bunker-buster bombs in the U.S. arsenal.

Trump also announced that the United States was restoring its blockade of Iranian shipping in the Gulf and would ensure the strategic Strait of Hormuz remained open — for a fee.

His remarks came after the United States and Iran exchanged another round of missile and drone attacks, further raising tensions between the longtime rivals.

Trump warned that additional U.S. military strikes were pending.

"We're going to ⁠hit them very hard tonight and we're going to hit them hard tomorrow. And there's not a damn thing ⁠they can do about it," he said.