President Vladimir Putin must decide on 'possible' Biden summit, France says

France on Monday called on Russian President Vladimir Putin to make a decision on meeting US counterpart Joe Biden in a summit proposed by Paris to ease soaring tensions over Ukraine.

"It is today possible to move towards a summit... Now it is up to President Putin to make his choice," a French presidential official, who asked not to be named, told reporters, describing the situation as "very dangerous" and the parties as "walking a fine line".