At least seven people were killed and around 150 were injured in clashes between opposing groups in the Indian capital, a police official told Reuters on Tuesday, the deadliest riots in the city since protests against a new citizenship law began over two months ago. "Seven persons, including one head constable of Delhi police, have died," said Anil Mittal, a police officer, adding around 150 persons were injured in the violence on Monday. "Some of the people brought in had gunshot wounds," said Dr Rajesh Kalra, additional medical superintendent at the Guru Teg Bahadur Hospital in New Delhi.