Canadian Prime Minister Justin Trudeau Monday rejected Russia's participation in a coming summit of the G7 nations, despite host US President Donald Trump wanting to invite Moscow.

"Russia was excluded from the G7 after it invaded Crimea a number of years ago," Trudeau told reporters. "Its continued disrespect and flaunting of international rules and norms is why it remains outside of the G7 and will continue to remain out," he added.

On Saturday Trump said he would postpone the planned June summit of leaders from the United States, Germany, Britain, Canada, France, Italy and Japan after German Chancellor Angela Merkel said she would not be coming, citing the coronavirus pandemic.

Trump said he could try again in September, and invite other countries including Russia to join the meeting. "I don't feel that as a G7 it properly represents what's going on in the world. It's a very outdated group of countries," Trump said.

He said he would like to invite Russia, South Korea, Australia and India to join an expanded summit in the fall.

The Kremlin said Monday that Trump had called President Vladimir Putin and discussed his plan to hold a rescheduled G7 "with possible invitation of the leaders of Russia, Australia, India and South Korea."

Trudeau though flatly rejected that prospect. "It's really important to keep holding these meetings and making sure that we are we are coordinating internationally in this time of crisis," he said.

Russia was expelled from what was previously the G8 in 2014 after invading and seizing Crimea from Ukraine and declaring it part of Russian territory.