That’s as a legal challenge against the introduction of the congestion charge for minicabs in London will be heard at the High Court later

The Independent Workers Union of Great Britain says the new rule indirectly discriminates against drivers - 94 percent of whom are from BAME backgrounds.

Earlier this month, the fee increased by 30 percent to 15 pounds per day.

Jason Moyer-Lee, from the group, says it's unacceptable.