Nokose,
Luutnantti Tauno Saalasti in Bf 109 G-2 MT-228 (WNr.
13890) of LeLv 34 was reported killed in a collision with I-153 (reportedly of 71 IAP KBF) in the area of Lavansaari on 21 May 1943.
You can find some more details includíng the source (secondary) of this information here:
http://surfcity.kund.dalnet.se/soviet_sitnikov.htm
Hope this helps,
Ota