Washington, Dhu-Al-Qa'dah 18, 1438 H., August 10, 2017, SPA -- US President Donald Trump doubled down on his harsh words against North Korea on Thursday, saying his warning of "fire and fury" against the regime if it continues its provocations "wasn't tough enough"." "It's about time somebody stuck up for the people of this country and the people of other countries, so maybe that statement wasn't tough enough," Trump told reporters at his golf resort in Bedminster, New Jersey, where he is on vacation. North Korea has threatened to attack the US territory of Guam amid an escalating war of words over its nuclear programme and a series of recent missile tests. Trump declined to say whether the US might consider a pre-emptive strike against North Korea, but said he was still open to negotiation. "North Korea better get its act together or they are going to be in trouble like few nations in this world have ever been in trouble," he said. He expressed satisfaction with sanctions passed by the UN over the weekend, but said he did not think they would be enough to change Pyongyang's behaviour amid decades of failed talks. --SPA 22:26 LOCAL TIME 19:26 GMT www.spa.gov.sa/w464060