Group of Seven foreign ministers on Wednesday discussed ways to increase pressure on Russia over the war in Ukraine, amid doubts over whether Moscow is interested in negotiating an end to the conflict.

U.S. Secretary of State Marco Rubio was in Canada's Niagara region for the meeting, which was also joined by Ukrainian Foreign Minister Andrii Sybiha, who pushed for Kyiv's allies to strengthen its long-range missile capability and bolster its energy sector as Ukraine enters another winter at war.

Countries attending the gathering of foreign ministers in Canada on Wednesday were also concerned about U.S. military operations in the Caribbean and whether armed strikes on alleged drug-trafficking boats carried out by Washington violate international law.