U.S. President Donald Trump on Wednesday stateside warned that if Iran continued targeting Qatar’s energy facilities, America would “massively blow up the entirety of the South Pars Gas Field.”

Tehran had attacked a key energy facility in Qatar after Israel bombed the South Pars Gas in Iran, signaling a sharp escalation in the conflict and sending energy prices soaring.

Trump denied any prior knowledge of Israel attacking South Pars, pushing back against reports that the strike was coordinated with and approved by his administration.

In a social media post Wednesday night stateside, Trump said that “the United States knew nothing about this particular attack, and the country of Qatar was in no way, shape, or form, involved with it, nor did it have any idea that it was going to happen.”