An amphibious vehicle capsized on a lake in Missouri on Thursday, killing eight of its 31 passengers and crew. The Southern Stone County Fire Protection District has labelled the tragedy, which took place on a Ride The Ducks boat, a 'mass casualty'. Emergency Services were called to the scene about 7pm after severe thunderstorms quickly rolled through the area, KY3 reported. Several more people were taken to hospital following the incident on the 'Ride the Ducks' amphibious vehicle on Table Rock Lake, Stone County, near Branson, Missouri. Seven patients [are in] the hospital and we do have some people still missing. So this is going to be an all night, into tomorrow [search],' Stone County Sheriff Doug Rader told reporters about 9.30pm. Eight dead and more missing in mass casualty after duck boat capsizes on Missouri river | Daily Mail Online Terrible tragedy. My thoughts and prayers are with those who have died, those missing and those injured.