U.S. President Donald Trump on Monday said he would order the military to postpone strikes on Iran’s power plants and energy infrastructure for five days following “productive” dialogue regarding “total resolution” of hostilities in the Middle East.

Trump said in a post on his Truth Social platform that the U.S. and Iran had “VERY GOOD AND PRODUCTIVE CONVERSATIONS REGARDING A COMPLETE AND TOTAL RESOLUTION OF OUR HOSTILITIES IN THE MIDDLE EAST.”

The U.S. president said these talks would continue through the week. Oil prices fell sharply on the news.

Speaking on a call with CNBC’s Joe Kernen on Monday morning, Trump said discussions with Iranian authorities had been very intense and that he remains hopeful something very substantive can be achieved.

The U.S. president also insisted on the same call that what is unfolding in Iran can be described as regime change, Kernen reported.