U.S. President Donald Trump on Monday threatened military action against Oman if it interferes with U.S.-Iran negotiations, while confirming that Washington maintains a backchannel with officials from Iran’s Islamic Revolutionary Guard Corps (IRGC).

Axar.az reports that Trump told Fox News when asked about Oman’s role in negotiations involving Iran and the Strait of Hormuz.

“If Oman gets in the way, we'll bomb the shit out of them,” he said.

Iran said Saturday that it had reached an agreement with Oman on a shipping route map for the Strait of Hormuz following weeks of technical negotiations.

Turning to Iran, Trump said Tehran should raise a “white flag of surrender,” adding: “They're good poker players, but they're dying.”

He also confirmed that Washington has a backchannel with the IRGC.

“We have a backchannel with the IRGC. We are speaking directly with the IRGC officials in Iran,” Trump noted.

It should be noted that Axios reported yesterday that U.S. President Donald Trump had established a secret channel with IRGC commander Ahmad Vahidi through Kurdistan Region President Nechirvan Barzani.