The Pakistan Peoples Party (PPP) has condemned India's "aggression against Pakistan by targeting civilian populations across the border".
The PPP is one of three major political parties in Pakistan and is chaired by Bilawal Bhutto Zardari, the son of the country's president, Asif Ali Zardari.
The party added in a post on X that India's "unprovoked" attack was a violation of "international law, the UN Charter and Pakistan's sovereignty".
"Indian provocations will be countered with full force and unwavering determination to protect Pakistan's sovereignty and territorial integrity," it said.
India says it launched "targeted strikes on nine terrorist infrastructure sites" in Pakistan and Pakistan-administered Kashmir and that no military, civilian or economic facilities were targeted.
It says the strikes are in response to the April militant attack in Pahalgam that left 26 people dead.
