At least 11 people died and six fishing boats carrying around 100 fishermen were missing as monsoon rains lashed India's eastern coastal state of West Bengal, officials said Saturday. The heavy downpour which began on Friday inundated the main city of Kolkata and disrupted road and rail traffic across the state. Kolkata received 154 millimetres of rainfall on Friday, the highest for the city on any single day in June in the last decade. Boats had been pressed into service to rescue people in some waterlogged areas, officials were quoted as saying by the German Press Agency "DPA". "At least 11 people have been killed in rain-related accidents including landslides and house-collapses in West Bengal over the past 24 hours," Manoj Das, an officer at Kolkata's main police control room said.