A hovercraft operating over Lake Baikal in Siberia overturns, killing five tourists, according to reports. The aircraft is described as a Russian-made model believed to be the Sever-750. It is reported to be travelling above the freezing waters of Lake Baikal, which is widely described as the deepest lake in the world. At the time of the incident, the hovercraft carries 18 people on board, though the accounts provided do not specify how many survive or whether injuries occurred beyond the five fatalities. The reports describe the overturning as occurring during flight over the lake. Details about the cause of the crash, the exact timing, rescue operations, and the identities of those involved are not included in the supplied information. Both sources repeat the same core facts: the location is Lake Baikal, the vessel is a Sever-750 hovercraft, and five tourists die after it flips while carrying 18 passengers. Further information would be needed to determine the circumstances leading to the accident and the status of the remaining passengers.