ISLAMABAD, Pakistan — Three Pakistani soldiers have been killed by Indian fire in the disputed Kashmir border region, officials said on Tuesday, after several Indian troops were killed by Pakistani gunfire nearby over the weekend.

The back-to-back deaths added to the latest round of military clashes between Pakistan and India across the Line of Control, and further dashed any faint hopes that the two estranged nations could soon normalize relations.

Three Pakistani soldiers were killed and one was injured Monday evening, in what the Pakistan Army described as an “unprovoked” cease-fire violation by India in the Rakh Chikri Sector of Poonch District.

Pakistan’s Foreign Ministry said Tuesday that the soldiers were killed after unspecified “nonstate actors,” who were provided cover by fire from Indian forces, planted bombs in Rakh Chikri. A spokesman for the ministry said that Pakistan had lodged a diplomatic protest.