The United States has temporarily paused weapons sales to Taiwan in order to ensure readiness for a potential escalation in Iran, acting Navy Secretary Hung Cao testified to the Senate Appropriations Defense Subcommittee on Tuesday.

"I have not heard, I have not spoken to the Taiwanese. However, we have done some military, foreign military sales to them. And it's just, right now we're doing a pause in order to make sure we have the munitions we need for Epic Fury, which we have plenty, but we're just making sure we have everything," Cao testified.

When asked by Sen. Mitch McConnell, R-Ky., if sales would be resumed at any point, Cao replied, "That would be up to the secretary of war and the secretary of state, sir."

"Well, that's really distressing," McConnell responded.

Cao did also add that "the foreign military sales will continue when the administration deems necessary."

His testimony came a week after President Donald Trump's state visit to China, where Chinese President Xi Jinping stressed the importance of Taiwan as a red-line issue.