A Class 5 student of a private school in Delhi died on Wednesday after she drank from a classmate's water bottle, which is suspected to have contained an "acid-like substance", police said.

The incident happened at a school in northeast Delhi's Harsh Vihar area and the 11-year-old girl, who died, lives nearby. After having lunch, she drank from a classmate's water bottle. Then she vomited in the classroom, following which she was taken to Guru Teg Bahadur hospital, where she died during the course of treatment, a senior police officer said.