Dozens were feared dead on Tuesday following an attack in Turkana by suspected Merille bandits from Ethiopia.
Although relief agencies put the number of those killed at 18, police said late yesterday that just five deaths had been confirmed.
Parliament was told by a local MP that 35 people had been killed, while other unofficial sources put the number of those dead as high as 40.
The victims were killed while taking a rest after a night-long fishing expedition at the source of Lake Turkana. The area of attack is about 170 kilometres from Lodwar town.