Following the Siege of Odessa, and the Axis occupation, approximately 25,000 Odessans were murdered in the outskirts of the city and over 35,000 deported; this came to be known as the Odessa massacre. Most of the atrocities were committed during the first six months of the occupation which officially began on 17 October 1941, when 80% of the 210,000 Jews in the region were killed, compared to Jews in Romania proper where the majority survived. After the Nazi forces began to lose ground on the Eastern Front, the Romanian administration changed its policy, refusing to deport the remaining Jewish population to extermination camps in German occupied Poland, and allowing Jews to work as hired labourers. As a result, despite the events of 1941, the survival of the Jewish population in this area was higher than in other areas of occupied eastern Europe.