Kuwaiti Emir Sheikh Sabah al-Ahmad al-Jaber al-Sabah (left) and US President Donald Trump meet in the Oval Office of the White House September 7, 2017 in Washington, DC.
Trump "underscored the importance of all countries following through on commitments from the Riyadh Summit to maintain unity while defeating terrorism, cutting off funding for terrorist groups and combatting extremist ideology", the White House said in a statement.
Trump also said he would be "very upset" if Syria's government uses chemical weapons.
Trump told a news conference on Thursday that he would be willing to step in and mediate a dispute among the USA -allied Arab states and Qatar, and said he thought a deal could come quickly.
Marwan Bishara, Al Jazeera's senior political analyst, described what was said by the two leaders at the press conference as a "positive" development in the diplomatic crisis. "I think it's something that's going to get solved fairly easily", Trump said. And he suggested he could help strike a quick deal.
Five killed as Mexico hit by strongest natural disaster , tremor triggers Tsunami waves
Mexican president Enrique Peña Nieto said the quake was 8.2 magnitude , making it the largest in the country for 100 years. Mexican states, Chiapas and Oaxaca were hit the worst, located around 70 miles from quakes location in the Pacific Ocean.
From a podium in the East Room of the White House, standing next to President Trump, the Amir said that his country has "descended into some not very healthy issues especially in the media".
In his comments, Trump offered a pointed reminder that terrorism financing is at the heart of the crisis. But the dispute has dragged on.
Trump initially appeared to side with Saudi Arabia, but then he instructed Secretary of State Rex Tillerson to support the Kuwaiti mediation effort. He noted that Qatar had been presented with a list of 13 demands by the other countries and was willing to discuss them. Although Qatar has rejected some of them out of hand, Sheikh Sabah said negotiations were possible.
The GCC is an alliance of six Middle Eastern countries: Qatar, Saudi Arabia, the United Arab Emirates (UAE), Bahrain, Kuwait and Oman. Qatar hosts a US military base critical to the anti-IS fight in Iraq and Syria.