KOLKATA, India (Reuters) - A woman receiving treatment for diabetes at a state-run hospital in eastern India lost one of her eyes after ants nibbled away at it, officials said on Tuesday.

The patient recovering from a post-surgery infection shrieked for help as the ants attacked her on Sunday night, but nurses told her it was normal to feel pain from the infection.

On Monday, the patient's family saw a gaping hole with swarming ants in it when they lifted the bandage on her left eye.

Authorities of the Sambhunath Hospital in Kolkata said they were probing the incident.