According to the diary written by a Soviet witness, on 26 April 1942 German bombers flew harassment missions all day against Murmansk, sending one bomber each time. Soviet defences claimed 5 shot down (note: 3 real losses)
See:
http://blockhaus.ru/forum/topic/2292...manske/page-34 (Google translate it well enough)
Another Russian source says two Ju 88 of KG 30 were lost (third one was from a recce unit), one by fighters and one by AA fire as said by Brian above, except that the AA unit was not German, but a Soviet one, Batteri 541. Also a Hurricane was shot down (against 6 claims by German fighter pilots).
https://eismeerjager.livejournal.com/4809.html