India and China have reached an agreement on military disengagement along their disputed border, New Delhi said, a step toward reducing frictions between the nuclear-armed neighbors that comes as both countries’ leaders arrive in Russia for a summit.

China has reached a resolution with India on resolving their border conflict and will work to implement solutions, a Chinese foreign ministry spokesperson said on Tuesday. China and India have been in close communication through diplomatic and military channels,

Tensions between the Asian powers had flared in recent years following a border clash that left at least two dozen soldiers dead.

The nuclear-armed neighbors have reached a breakthrough in discussions over their disputed Himalayan border, four years after a clash that saw security forces engage in hand-to-hand combat.