DHAKA—A missile or bomb hit a Bangladeshi-owned cargo ship in the Ukrainian Black Sea port of Olvia, killing one of its crew members, and efforts were underway to rescue the others from the vessel, its owner said on Thursday. “The ship came under attack and one engineer was killed,” Pijush Dutta, executive director of Bangladesh Shipping Corp., told Reuters. “It was not clear whether it was a bomb or missile or which side launched the attack. The other 28 crewmen are unharmed,” he said, without providing further details. The Bangladesh-flagged Banglar Samriddhi had been stuck at the port of Olvia since Russia’s invasion of Ukraine began on Feb. 24, and was hit by a missile, a Bangladeshi foreign ministry official said earlier on Thursday. The vessel was struck on Wednesday evening and videos on social media showed crew members asking for help. In one video, the vessel’s second engineer said …