Three children drowned in a boat mishap at Makum near Sadiya in Tinsukia district last night, while the NDRF rescued 42 others, official sources said.
Two others each died in Dibrugarh and Tinsukia districts and one each in Sibsagar and Nalbari yesterday, the sources said.
The worst affected districts were Baksa, Barpeta, Darrang, Dhemaji, Dibrugarh, Golaghat, Jorhat, Kamrup (rural and metro), Lakhimpur, Morigaon, Nagaon, Nalbari, Sibsagar, Sonitpur and Tinsukia.
Ten relief camps have been set up in Sonitpur district, the sources said.
Meanwhile, with almost the entire 420 sq m of core area of the Kaziranga National Park flooded by waters of the Brahmaputra River, poachers taking advantage of the situation, killed a one-horned rhinoceros last night, forest officials said.
The poachers took away the pachyderm's horn, they said.
The Pabitora Game Sanctuary, having the highest density of rhinoceroses in the world and the Dibru Saikhowa sanctuary which has rare wild horses were also inundated.