British Prime Minister Boris Johnson has said he will convene a meeting of leaders from the Group of Seven nations on Tuesday for “urgent talks on the situation in Afghanistan.” In a statement posted on Twitter, Johnson said it is “vital that the international community works together to ensure safe evacuations, prevent a humanitarian crisis and support the Afghan people to secure the gains of the last 20 years.” The U.K. holds this year’s presidency of the G-7 nations, which is also made up of Canada, France, Germany, Italy, Japan and the United States.