Seven people were arrested after a protest about disabled people's rights brought traffic on Westminster Bridge to a standstill during Tuesday morning's rush hour.
About 40 protesters, some in wheelchairs, gathered on the south side of the bridge between St Thomas' Hospital and County Hall at about 7am, blocking the road to cars and buses.
They say the government's draft Disability Discrimination Bill does not sufficiently address issues which affect disabled people's lives.
The bill is being considered by a parliamentary scrutiny committee.
The demonstration was organised by the Disability Action Network, a direct action civil rights group.
Police removed the protestors from the road at about 9am.
It is not known whether any of those arrested will face charges.