Islamabad, whose air force primarily operates Chinese-made jets and U.S. F-16s, has previously denied that India downed any Pakistani aircraft during the fighting.

Indian Air Force chief Amar Preet Singh claimed on Saturday that six Pakistani aircraft - five fighter jets and another large aircraft - were downed during the clash in May. Just hours later, Pakistan's Defense Minister Khawaja Asif rejected the claim,

Most of the aircraft were downed by India’s Russian-made S-400 surface-to-air missile system, citing electronic tracking data as confirmation.