Sixteen out of the 21 people killed in Kaduna state on Wednesday were from the same family, multiple media sources said.
Some of the victims were locked up and burnt in their house by the armed bandit who invaded their village.
A number of other people were shot dead when dozens of the unknown gunmen arrived in their village. Vehicles and other property were set ablaze.
The attack came barely three days after suspected Boko Haram insurgents invaded Auno Village in Borno State, killing 10 people and destroying 18 vehicles.