Four tourists from Tamil Nadu drowned as the houseboat they were cruising tilted and capsized at Punnamada lake in Alappuzha today, police said.
The boat had 61 tourists and all but the four, including three women and a child, were rescued. They were rushed to a hospital where they were declare dead, sources said.
The mishap happened close to the landing point where the tourists were being shifted from one boat to another. The boat tilted to one side before it partly got submerged into water.
Those who died had got trapped in the submerged part of the boat.
The exact place in Tamil Nadu from where the tourists had come was yet to be ascertained, police said.
Punnamada lake is the hub of water tourism in Kerala where a large number of houseboats operate.