About 150 climate change protesters blocked all traffic on Brisbane's William Jolly Bridge for an hour on Friday morning, treating the key inner-city thoroughfare as a makeshift dance floor.

The Extinction Rebellion group moved onto the bridge about 9am on Friday and 15 minutes later sat in a circle in the middle of the four-lane river crossing.

The Extinction Rebellion group blocked all traffic the four-lane bridge to demand action on climate change. Credit:Toby Crockford

They demanded action on climate change, with a specific focus on the recent Queensland and NSW bushfires.

Protesters then used the middle of the bridge as a dance floor, testing the patience of the police, who responded by opening the doors of several vans with cells.