Diplomats from the G7 nations were set to negotiate late into the night over a joint statement to show a united front in Canada on Thursday after weeks of tension between U.S. allies and President Donald Trump over his upending of Western trade and security policy.

The Kremlin said there are reasons to be optimistic about a settlement to the conflict but that more work needs to be done.

Foreign Affairs Minister Mélanie Joly says the G7 is united in supporting a U.S.-backed ceasefire proposal for Ukraine, which has been endorsed by Kyiv and is now awaiting a response from Russia.