"At least 13 people have been killed by a massive gas leak at a chemical plant in southern India, with hundreds of others taken to hospital.
The leak from the LG Polymers plant in the city of Visakhapatnam in Andhra Pradesh state came as people slept.
Doctors say patients have been complaining of a burning sensation in the eyes and difficulties breathing.
Areas around the plant have been evacuated. The leak may have been due to negligence, officials say."