Pakistan claimed that India has fired missiles at three air bases in the country. But most of the missiles were intercepted and that retaliatory strikes on India were underway, it said as reported by news agency AP.

Heavy shelling was reported from the Pakistani side along Jammu and Kashmir's Akhnoor, Hamirpur and Pallanwala.

Blasts rang out across Indian Kashmir and the Sikh holy city of Amritsar in neighbouring Punjab state late on Friday, with the Indian military saying it was shooting down drones in the worst fighting with Pakistan in nearly three decades.