This is just awful:

Workers at a nuclear power plant in southern India were treated for poisoning after drinking water was deliberately spiked with radiation, senior government officials said Sunday.

Routine tests showed 55 employees from the plant in Kaiga in the state of Karnataka had increased levels of the radioactive element tritium, which is used in nuclear reactors.

B. Bhattacharjee, a member of the National Disaster Management Authority, said someone had inserted contaminated water into a water cooler, according to the Press Trust of India.