Escalating violence in the Middle East overshadowed movement on trade deals within the G7 on Monday, as U.S. President Donald Trump announced late in the day that he would be leaving the leaders' summit early because of the crisis in Israel and Iran.

The 2018 summit ended with Trump assailing his Canadian hosts on social media as he departed on Air Force One, saying he had instructed the U.S. officials who remained in Quebec to oppose the G7 joint statement endorsed by the leaders of Japan, France, the United Kingdom, Italy, Germany and, of course, Canada.

World leaders at the Group of Seven summit in Canada scrambled Monday to find a way to contain the escalating conflict between Israel and Iran.