Tablets linked to the deaths of more than a dozen women who visited a sterilisation camp in India are likely to have contained a chemical compound commonly used in rat poison, two senior officials in Chhattisgarh state said on Saturday.

Preliminary tests of the antibiotic ciprocin tablets were found to contain zinc phosphide, Siddhartha Pardeshi, the chief administrator for the Bilaspur district, told Reuters.

The antibiotics were handed out at the mass sterilisation held a week ago in the impoverished state. At least 15 women have died, most of whom had attended the camp. — Reuters