Russian border guards have detained ship PTS-029 sailing under the Azerbaijani flag in the Caspian Sea, RIA Dagestan reports.
The ship had over 300 sturgeons on boards, despite the ban on sturgeon fishing in the area.
Another ship Taifun was detained in August 2012 carrying about 3.5 tons of sturgeons. The same ship was caught before in 2011.
