Theresa May has now signed a letter to trigger Article 50, the start of the official process to leave the EU.
Worst lines for tube delays identified
If your journey to work involves the Jubilee, Victoria, District or Met lines - they've been flagged up the worst for delays.
The London Assembly says equipment is usually to blame and delays are now a drag on London's economy.
As a result, in the space of a year, Londoners spent an extra 6.5m hours on the tubes.
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A man has been fined £1,800 for flying drones over Parliament, near Buckingham Palace and over football stadiums.
Government to investigate after some restaurants accused of withholding tips
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