The Russian navy accidentally fired on a fishing trawler during training exercises earlier this week, causing an explosion and killing three people on board the vessel, the independent broadcaster Dozhdreported, citing one of the victims relatives.Authoritiessaid Tuesday that one fisherman had died and four others were injured in afire that had broken out on board the trawler in the Baltic Sea.Citing AIS ship tracking data, Dozhdreported that the trawler, the Captain Lobanov, may have unintentionally entered the zone of the Russian navys Baltic Fleet drills.Russias Defense Ministry had not announced the exercises, but navigation warningssaidthe waters around the nearby Kaliningrad region were temporarily hazardous for shipping.Late Thursday, Dozhd cited a crew members relative who claimed that the Captain Lobanov was struck by a Russian Navy missile by mistake.Everyone knew perfectly well that a missile had struck, but they decided to write that there was a fire, the relative was quoted as saying.I wonder what kind of fire it was if the captains cabin is completely gone, it was just blown away, they added.Agents from Russias Federal Security Service (FSB) allegedly interrogated the crew members of the Captain Lobanov at a hospital they were sent to and asked them not to spread word about the incident, according to the family member.Dozhds source claimed that three crew members were killed in the accident.As of Friday afternoon, there was no official confirmation or denial of the relatives claims.