Suspected Islamist militants rolled into the Kautikiri village in Northern Nigeria and started shooting at people, a survivor said.
Samuel Chibok said that around 20 men arrived in a Toyota pick-up truck and motorcycles and opened fire.
He said: "Initially I thought they were military but when I came out, they were firing at people. I saw people fleeing and they burned our houses." He added that two of his relatives were among the dead.
"Smoke was billowing from our town as I left," he said.
Suspected Islamists have killed at least 10 people in an attack on a village less than three miles from Chibok - the scene of a mass abduction of over 200 school girls in April, survivors told Reuters.
Insurgents also killed seven soldiers in the village of Goniri, Yobe state, on Friday, a security source told the news agency.
A Nigerian man has been detained and medicated in a mental institution on the grounds of being an atheist, a campaign group has claimed.
Mubarak Bala, 29, has been held against his will at the hospital in Kano - a deeply Islamic part of the country - for almost two weeks, the International Humanist and Ethical Union says.
According to the group, Mr Bala's Muslim family alleged that he was showing signs of delusion after he decided he no longer believed in God.
Bamidele Adeneye, a lawyer who has taken up the case, says: “Kano is a Sharia state and there are many similar cases occurring, where people are forcefully oppressed just because of their beliefs or for conservative religious reasons, or for the “honour” of their family."
A petition for Mr Bala's release has now reached almost 3,000 signatures at the time of writing.
A government spokesman has said Abuja residents should remain calm tonight, saying that security agencies are now "handling the situation."
The latest explosion in Nigeria's capital, Abuja, killed 21 and injured 17 people in a shopping complex.
Spokesman Mike Omeri told AP: "Every step is being taken by the government to check the activities of insurgents in the country."
The explosion in the Abuja shopping district is the third bomb blast in as many months.
No one has yet claimed responsibility for the blast.
Injured men and women have arrived at the Maitama general hospital in Abuja, after a shopping complex bomb blast killed 21 and injured 17.
After an explosion in the popular Banex Plaza shopping district in Abuja, Nigeria, witnesses spoke of seeing people covered in blood in the direct aftermath.
One shopper Gimbya Jafaru, told Reuters: "I heard a loud blast, it shattered the windows of the shop. We ran out. A lot of people ran too, some with blood stains."
At least 21 people have been killed and 17 were injured according to the latest reports.
The death toll following an explosion in Nigeria has climbed to 21, police have said.
17 others were wounded after the blast tore through a shopping district in Abuja during rush hour.
Police spokesman Frank Mba told reporters: "After a preliminary investigation we can confirm that 21 people were killed and 17 injured."
It is unclear who is responsible for the explosion at this stage.
An emergency services source has said that at least 10 people have been killed and more have been wounded in an explosion near a shopping centre in the Nigerian capital of Abuja.
The source, who was at the scene, said: "This thing, it happened at peak time," adding that scores of cars were also damaged in the blast.