India attacked Pakistan and Pakistani Kashmir on Wednesday with at least eight deaths reported, and Pakistan called the assault a "blatant act of war" as the worst fighting in more than two decades erupted between the nuclear-armed enemies.

Amid a nearly 80-year-old territorial dispute over Kashmir, India's offensive followed an attack by Islamist assailants that killed 26 Hindu tourists in Indian Kashmir last month. India said Pakistan-based militants were responsible, but Pakistan denied involvement.

Calling its campaign "Operation Sindoor," India said it struck nine Pakistani sites on Wednesday that were "terrorist infrastructure" where attacks against it were orchestrated. Islamabad said six Pakistani locations were targeted.