World leaders have raised serious concerns about escalating tensions between India and Pakistan which spilt over into deadly strikes on Wednesday.

India’s military said the strikes were made in retaliation for a militant attack in Indian-administered Kashmir. Analysts warn the risk of escalation is rising.

A spokesman for Pakistan's military told broadcaster ARY that India had attacked Pakistan with missiles in three places and that Pakistan would respond. The development comes amid heightened tensions between the nuclear-armed neighbours in the aftermath of an attack on Hindu tourists in Indian Kashmir last month.