Ukrainian children started school in Bucharest on Thursday, the same day schools opened in Ukraine,ahead of the official school starting date on September 5th.Approximately 80-thousand Ukrainians found refuge in Romania, acording to local media quoting Romanian border police.At least 379 children have been killed since the war began, while the whereabouts of 223 others unknown, according to Ukraine's General Prosecutors office.Another 7,013 children were among Ukrainians forcibly transferred to Russia from Russian-occupied areas.