Police say at least 14 people have been killed and many others wounded in an attack by armed men on a village in Zamfara state.
Residents say the death toll was much higher with dozens killed in the hours-long attack, which began late on Sunday evening and continued into Monday morning.
One resident told the BBC that six of his children were killed after gunmen stormed the village of Karaye on motorbikes.
Another said his father and grandfather were killed.
The victims, including women, children and the elderly, were either shot dead, burnt beyond recognition or had their throats slit, the resident said.
Dozens of homes were set ablaze and livestock was stolen. .
Zamfara police spokesman Muhammad Shehu told the BBC it was believed to be a retaliatory attack following a clash earlier this month between the bandits and vigilantes based in Karaye.