Trump's warning to Iran over the weekend signals that the impasse between Washington and Tehran over ending the war could deteriorate into resumption of armed conflict.

Brent crude nears $105 as Trump calls Iran ceasefire on 'massive life support,' raising geopolitical risk premiums and pushing oil prices higher.

Trump told Axios "the clock is ticking" for Iran and warned if the regime doesn't make a better deal "they are going to get hit much harder."