U.S. President Donald Trump told reporters at the White House that in his view, both sides had violated the nascent agreement, using an expletive to hammer home his point.

A fragile ceasefire between Iran and Israel appeared to hold Tuesday after initially faltering, while U.S. President Donald Trump used an expletive outside the White House to describe his frustration with both nations.

U.S. President Donald Trump said on Wednesday that the day-old Israel-Iran ceasefire was holding up “very good.” “Israel came back yesterday, I was so proud of them,” the president told reporters, speaking alongside NATO Secretary-General Mark Rutte at the transnational military alliance’s summit in the Netherlands.