According to an article by Roland Pfeiffer (
http://www.lexikon-der-wehrmacht.de/Zus ... rkei-R.htm) the Ostmuselmansichen SS-regiment lost about 44 (WIA,KIA and MIA) Germans (or of non-ost people descent) in Wolocyn on the 5th of July 1944. Roland in his article calls this event an "uprising in a polish city of Wolocyn". He doesn't mentions how many ost-legion soldiers (most of them probably Turks) where lost, or what kind of uprising there where.
Wolocyn is probably today the Belarusian town of Valozhyn (
http://en.wikipedia.org/wiki/Volozhin). Before the war it was polish and was called Wołożyn. Other names that I have encountered are Wolozyn and Volozin. I do believe that all the names refer to the same town.
The Ostmuselmansichen SS-regiment was subordinated to the "Dirlewanger" brigade/regiment in May 1944. Both units stayed and fought together until late fall 1944. Neither in Macleans book or in the polish edtion of Michaelis book about Dirlewanger brigade I can't find any information about 5th of July and Wolozyn.
In Hinzes book about Bagration I found out that the VI German Corps had their headquerters west of Wolozyn about at the time of the events mentioned here. Group von Gothberg operated east of Wolozyn but as far as I know neither Dirlewanger brigade or the Ost-SS regiment where part of this group. Maclean says that Dirlewanger could have been part of it, but has no proof, other publications only mentions police regiments (2. and 17.). Munoz in Romanko in their book about partisan war in Belarusia doesn't mentions any antipartisan operation in that region at that time.
Personally I think they probably fought against Red Army when windrowing from Belarusia.
So what really happened there? Where were both units located during operation Bagration (none of the books that I have read mentions it)?