London taxi drivers descended on Elephant and Castle as part of a series of protests this week against TfL and Uber.
The protests, in response to TfL's reasons for revoking Uber’s licence and the minicab firm’s continued operation in London, are set to take place throughout the week in the capital.
On Monday afternoon the busy Elephant and Castle roundabout was brought to a standstill by black cabs, causing traffic chaos in the surrounding area.
TfL tweeted that all approaches to Elephant and Castle were affected.
It advised motorists to use other routes.
Meanwhile buses serving the area were diverted or terminated earlier than usual.
One person tweeted: What's going on in Elephant and Castle, been parked up for 30 mins."
Another added: "Big black cab protest at Elephant and Castle. Roads blocked and big delays."
A TfL spokesman said: "The law stipulates that operators can continue until any appeals process is exhausted.
(Obviously they haven read their own legislation PHV act 1998 sec 26(2), editor)
“We urge the organisers to call the protests off."
Further protests will take place on Tuesday at 3.30pm in Marble Arch, on Wednesday at 12pm in Parliament Square, on Thursday at 3.30pm in London Bridge, with a final protest on Friday which is to be announced.