UK union calls on its Uber drivers to strike on Tuesday

A British trade union called on Uber [UBER.UL] drivers to strike in London, Birmingham and Nottingham on Tuesday for 24 hours by not signing into the app, in a push for higher fares and moreworking rights.Uber has around 60,000 drivers in Britain and earlier this year won back its right to operate in London after it was stripped of its licence by the city's regulator.The Independent Workers Union of Great Britain (IWGB) expects hundreds of drivers at least to participate in the industrial action