India targets militants sites in Pakistan
Many were killed when Indian Army fighter jets attacked Pakistani terrorist groups Jaish Mohammad and Lashkar-e-Taiba.
A top Indian minister said strikes targeted a training camp of the Jaish-e-Mohammad (JeM) group in Balakot, BBC reported.
Pakistan said the strikes hit an empty area, but vowed to respond.
Relations between the nuclear-armed neighbours have been strained since a suicide attack earlier this month that killed more than 40 Indian troops.
The terrorist group ' Jaish-e-Mohammad' has claimed responsibility for the attack.
India accuses Pakistan of allowing militant groups to operate on its territory and says Pakistani security agencies played a role in the 14 February attack. Pakistan denies any role and says it does not provide safe haven to militants.
Tuesday's air strikes are the first launched across the line of control - the de facto border that divides India-administered Kashmir from Pakistan-administered Kashmir - since a war between the two countries in 1971.
Balakot is in Pakistan's north-western Khyber Pakhtunkhwa province.