Mark Zuckerberg vows more action to tackle fake news on Facebook

Facebook chief acknowledges problem but continues to argue that spread of hoax stories on the social network did not influence US election

Mark Zuckerberg has said Facebook will do more to tackle fake news while continuing to argue that the spread of hoax stories on the social network did not affect the result of the US election.

In a post on his Facebook profile late on Saturday, Zuckerberg said Facebook hoped to announce new measures to tackle fake stories "soon".