During the fighting around Kharkov, a unit under the command of Joachim Peiper gained a nickname "Blowtorch Battalion", after the inhabitants of two Soviet villages were shot or burned. Ukrainian sources, including surviving witness Ivan Kiselev, who was 14 at the time of the massacre, described the killings at the villages of Yefremovka and Semyonovka on 17 February 1943. On 12 February Waffen-SS troops of the LSSAH occupied the two villages, where retreating Soviet forces had wounded two SS officers. In retaliation, five days later LSSAH troops killed 872 men, women and children. Some 240 of these were burned alive in the church of Yefremovka.