Sadiq Khan reads out racist tweets and reveals death threat

Sadiq Khan was targeted by racist and Islamphobic tweets including one labelling him a 'gay muzzie terrorist', he revealed during a speech in America.

The London mayor used his appearance at the South by Southwest film festival in Texas to detail a catalogue of vile messages directed at him.

Mr Khan called on social media platforms to take a tougher line against online abuse or face increased regulation.

Mr Khan accused politicians and governments of 'sitting on their hands' while the tech revolution unfolded.