There appears to be conflicting information as to what caused the GZ to sink. I've heard, as previously noted she sank while being towed however based on the commentary described on the link I listed below, it was sunk by a combination of charges and torpedoes of the Soviet Navy. Any thoughts, insight.
http://www.ocean-discovery.org/forum...hread.php?t=28
Very interesting topic.
Cheers
Jeremy