Russia has announced plans to send a second aid convoy to rebel-held eastern Ukraine, where months of fighting have left many residential buildings in ruins.
Russia unilaterally sent about 200 tractor-trailers across the border on Friday, a move that Ukraine said was an invasion.
By Saturday, all of the vehicles had returned to Russia after delivering goods to the hard-hit rebel stronghold of Luhansk.
Foreign Minister Sergey Lavrov said Russia has notified the Ukrainian government that it is preparing to send a second convoy along the same route in the coming days.
He also said distribution in Luhansk of the food, water and other goods delivered by the first convoy began today, with the participation of the International Committee of the Red Cross.