A group of killer whales attacked a sailing boat off the coast of southern Spain on Thursday, causing severe damage to the vessel. The maritime rescue service responded to the incident and deployed a rapid-response vessel and a helicopter to assist the boat and its four crew members. Andrew W. Trites, professor and director of Marine Mammal Research at the University of British Columbia, said that the behavior is unusual and began in 2020, with the incidents more than tripling in the past two years. Authorities are urging caution when sailing in the area due to the increasing frequency and severity of the attacks.