US nuclear plant in river leak
A radioactive form of hydrogen has leaked from a US nuclear plant into soil and groundwater has reached the nearby Connecticut River, according to health officials.
State Department of Health Commissioner Harry Chen said water samples from the shoreline near the Vermont Yankee nuclear plant last month tested positive for small amounts of tritium, a radioactive isotope of hydrogen which has been linked to cancer when ingested in large amounts.
Governor Peter Shumlin wants more wells to pull contaminated water from the ground on the Vermont Yankee site. He says he is "very concerned".
Tritium has leaked from nuclear plants around the country before. It is particularly problematic for Vermont Yankee as it seeks to renew its licence.
New Orleans-based plant owner Entergy is suing Vermont in federal court over the state's efforts to shut the plant down.