19, citing undisclosed U.S. officials.The move follows the Biden administration's authorization of the use of U.S.-made long-range missiles to strike Russian territory. Kyiv has not officially confirmed the claims, but recent reports indicate Ukraine deployed U.S. ATACMS missiles in Russia's Bryansk Oblast.The transfer of anti-personnel mines could be controversial, as it contradicts the Ottawa Convention, also known as the Anti-Personnel Mine Ban Treaty, which has been signed by more than 160 countries. Russia and the U.S. are not signatories to this initiative.Since the beginning of the full-scale invasion, Washington has been supplying Kyiv with anti-tank mines, while Ukrainian forces have been looking for opportunities to obtain infantry mines over the past three years. Moscow has used anti-personnel mines without restriction at the front line, hampering the progress of the Ukrainian military.Biden was reluctant to supply Ukraine with mines due to doubts in his administration and the risk to civilians.