US President Donald Trump said the US commitment to NATO “remains very strong” despite reports that he threatened to pull out in a dispute over defense spending.

Trump said at a news conference Thursday in Brussels that he told “people” that he would be “very unhappy” if they didn’t increase their commitments.

Trump said the US has been paying “probably 90 percent of the costs of NATO.”

Trump added that he was “extremely unhappy with what was happening and they have substantially upped their commitment.”

NATO had no immediate comment.

Trump once declared NATO “obsolete.” He said Thursday, “I believe in NATO.”