Olympic gold medal-winning canoeist Etienne Stott from Nottingham says he "does not regret" his arrest at the climate change protests in London.
The 39-year-old was arrested on Sunday and has now been released under police investigation.
He won the C2 canoe slalom gold at the London Olympics in 2012.
Stott shouted of the "ecological crisis" as he gave a speech while sitting on top of a bus stop, next to TV presenter and naturalist Chris Packham.
Stott was carried from Waterloo Bridge by Metropolitan Police officers after sitting down on the road. He was arrested for 'failing to comply with a condition' under Section 14 of the Public Order Act and for the 'wilful obstruction of way'.
He was released under investigation at around 4.00am on Monday.