Russian President Vladimir Putin to quit G20 summit after rebukes over Ukraine

Russian President Vladimir Putin is to walk out of a G20 summit in Australia, an aide said Saturday, after he faced scorn and scepticism from Western leaders over Ukraine despite venturing to paper over Europe's deepest chill in relations since the Cold War.

The abrupt decision threatens to upend the annual summit's focus on revamping the global economy and fixing sores such as the Ebola epidemic in west Africa.

"The programme of the second day (Sunday) is changing, it's being cut short," a source in the Russian delegation told AFP on condition of anonymity.