Search and rescue teams in Thailand are looking for 13 members of an under-16 football team who went missing in a flooded cave over the weekend.<br /> Officials believe 12 players entered the Tham Luang Nang Non cave in Chiang Rai province with their 25-year-old coach late Saturday afternoon. <br />They are thought to still be alive and officials are tracking footprints and other clues to their whereabouts.<br />However, heavy rain is causing water within the cave to rise, hampering search efforts. <br />