Over 600,000 people have signed a petition to stop the ban in London.
One witness said that one group of males in balaclavas sprayed the substance from Lucozade bottles.
Transport for London stripped Uber of its private hire licence in the city claiming it lacks corporate responsibility.
The ride-hailing app must address its problems, but TfL's ban is a blow to many hardworking people.
Find comes as 1,180 under-18s were cautioned or sentenced for carrying blades in just three months.
As Uber faces expulsion from London's streets, these apps are waiting in the wings.
Officer's condition is not life threatening, his colleagues say.
Take-away anyone?
Police investigating the attack, which left 30 people injured, have detained a third man.
25 fire engines raced to the scene of the major fire at a warehouse in north London.
The baby boy has been named Harry until authorities find out his real name.
Residents have been told to leave their property and retreat 100m from a residence on Cavendish Road.
Phrase became the third most popular topic on Twitter across London a day after the explosion.
Military deployed to London streets in wake of Tube bombing.
Prime Minister Theresa May said another attack is imminent but urged the public to 'go about their business as usual'.
Driver treated for shock after vehicle caught fire without warning.
Cyclist arrested at scene for unrelated alleged offence.
Holocaust survivor was killed in 1972.
Police have urged anyone with information to come forward.
Winds of 75mph to batter Scotland and the north of England tonight as low pressure sweeps in from Atlantic.
The repeal bill was a key parliamentary test for Brexit.
City extends lead over New York, but European hubs are expected to benefit post-Brexit.