Convictions over a gas plant leak that killed thousands of people in 1984 in the Indian city of Bhopal have been heavily criticised by campaigners. Amnesty International described the two-year sentences for eight people as "too little, too late". The convictions are the first since the disaster at the Union Carbide plant...The eight Indians, all former plant employees, were convicted of "death by negligence"...the International Campaign for Justice in Bhopal [said] the punishment imposed on Union Carbide was wholly inadequate...Satinath Sarangi, an activist also campaigning on behalf of Bhopal victims, told the BBC that justice would not be done until US executives from Union Carbide at the time of the incident - including the company's former head, Warren Anderson - were brought to India to face justice.