SAN JOSE, Costa Rica, Rabi'I 17, 1436, Jan 8, 2015, SPA -- A catamaran carrying dozens of foreign tourists on a pleasure cruise capsized off Costa Rica on Thursday, killing four people, emergency officials said, according to AP. The boat, which was on a day trip to the popular Tortuga (Turtle) Island, sank completely about 9 miles (15 kilometers) off the country's central Pacific Coast. Firefighters Corps director Hector Chavez said initial reports of an explosion and fire were mistaken. Survivors reported that strong waves filled the boat with water and caused it to sink, he said. Private boats in the area took in passengers until rescuers arrived. Tour operator Pura Vida Princess reported that the 100-foot catamaran left Marina Los Suenos in the morning with 98 passengers and a crew of 10. -- SPA 22:41 LOCAL TIME 19:41 GMT www.spa.gov.sa/w