A commissioner for a body monitoring the London 2012 Olympics has resigned over its links with Dow Chemical - the company which nows owns the Bhopal chemical works.

Meredith Alexander said she was quitting the Commission for a Sustainable London 2012.

She told the BBC's Newsnight why she was resigning: "I feel I was part of a lobby which legitimised Dow's claims that it had no responsibility for Bhopal."

Thousands of people died and suffered serious ill health as a consequence of a chemical spill at the Bhopal plant in 1984 when it was owned by Union Carbide.