From the war diary of the 281 Aviation Division:Berlejev Mark Isajevitsh S.lieutenant 703 ShAP Il-2 21.6.44 Portinhoikka (NE from Vyborg, Karelian Isthmus) shot 28.8.44 (?).
"1 Il-2 piloted by sr. lieutenant Berleyev with a gunner sergeant Komarov when finishing an attack was attacked and shot down by 4 hostile fighters. The airplane crushed on hostile territory south of Portinhoikka crossroad."
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