US Generals and senior politicians – including General James Mattis and Secretary of State Rex Tillerson – are said to have been in the meeting today in Washington.
The Situation Room often hosts war councils and emergency meetings during times of conflict or national crisis.
It was made famous as where President Barack Obama monitored the mission to kill Osama bin Laden.
It is not yet known what was discussed during today's meeting, but comes after Trump warned the world is in the "calm before the storm".
The US President has also said only "one thing" will work against North Korea and has criticised the past 25-years of US policy on the Kims.
Source: Daily Starf