"India’s main opposition Congress party has called a general strike in central Chhattisgarh state where 13 women have now died after botched sterilisation surgery at a state-run health camp.
Sixty women remain in hospital and at least 20 are in a critical condition following the tubectomy operations.
A team of doctors from the capital, Delhi, are being flown to the state to help out with the emergency.
Health camps are staged throughout India to control its huge population.
The Chhattisgarh government has ordered an inquiry into the deaths and Chief Minister Raman Singh has said "it appears the incident occurred due to negligence" by doctors.
The victims’ families, all from poor families, have each been promised a compensation of about $6,600 (£4,150).
Four senior health officials have been suspended and a police complaint has been registered against the surgeon who performed the operations."