Pakistan said in a statement that retaliatory attacks are under way in response to what it called "continuous provocation" by India, which it accuses of firing missiles at three airbases inside Pakistan.
Pakistan's military said it used medium-range Fateh missiles to strike more than 25 military sites, including airbases and weapons depots in the Indian states of Gujarat, Punjab and Rajasthan, as well as locations in India-administered Kashmir.
India's army responded on X to what it described as Pakistan's "blatant escalation with drone strikes and other munitions" along its western borders, adding they were "instantly engaged and destroyed" by air defences.
Pakistan's military posted footage on X showing missiles being fired from what appeared to be a mobile launcher.
The AP news agency also said loud explosions have been heard in India-administered Kashmir, in the disputed region's two big cities of Srinagar and Jammu, and the garrison town of Udhampur.
Five people were killed in the Jammu region, Indian police told the Reuters news agency.
