Black cab drivers have brought Westminster to a standstill.
They're protesting about not being allowed to use the Olympic Games Lanes- they say being excluded from them makes it impossible for them to do their job.
Around two hundred black cab drivers brought London to a standstill today in protest against the new 'Olympic lanes' driving restrictions.
Those who stray into operational Games Lanes face a penalty charge of £130.
The first of the Olympics Games Lanes came into operation this morning - on the M4, which has only just reopened following repairs.