Seven former senior employees of Union Carbide’s Indian subsidiary were convicted today of “death by negligence” for their roles in the Bhopal gas tragedy which killed an estimated 15,000 people more than a quarter of a century ago.

HUNDREDS of people marched through Bhopal with torches before dawn yesterday to mark the 25th anniversary of the world’s worst industrial disaster and demand the cleanup of toxic chemicals they say still contaminate the Indian city’s soil and water.

CIVIL rights activists, survivors and other protesters converged on Bhopal this week to mark the 20th anniversary of the world’s worst industrial accident and demand justice for hundreds of thousands of people still suffering.