Russia resumes heavy bombing of Aleppo

Russian jets have resumed heavy bombing of rebel-held eastern Aleppo after several days of relative calm.

The airstrikes mostly hit the Bustan al-Qasr neighbourhood.

Casualties were reported, but a number was not known.

Last week Moscow and the Syrian government had reduced air raids, partly to allow civilians to leave opposition-held neighbourhoods.

Damascus had said that rebels holed up in Aleppo can leave with their families if they lay down their arms.

Meanwhile Russian President Vladimir Putin postponed a meeting in Paris with French President Francois Hollande amid growing diplomatic tensions between Moscow and the west.