At least 11 people have been killed in an explosion at a bar in a market near a barracks in Nigeria's capital, Abuja, military sources have told the BBC. Nigeria's military chief said a bomb had been planted to target people celebrating New Year's Eve. The explosion happened in the Mammy market, where soldiers and civilians often gather to eat and drink beer. Air Marshal Oluseyi Petirin blamed "devilish people" but did not name any group or give a possible motive. He also declined to give any casualty figures. State TV has said 30 people were killed but other sources say four people have died. Witnesses have told the BBC they saw body parts lying on the ground and injured people being carried away after the blast. "People ran in different directions. There were scores of bodies - dead and wounded. They used army trucks to pack them away," a market regular called Eric said, reports the Reuters news agency. The area has been sealed off. Air Marshal Petirin said a bomb had been placed "where people were relaxing and generally being happy because of the New Year which is approaching". He urged Nigerians to be vigilant following a recent spate of bomb attacks in a country where they had been almost unknown. "Do not allow anybody to come and leave a bag, or any kind of object, especially when he is not there," he told state TV. There have been bomb attacks in the capital and other cities in recent weeks:

• On Wednesday, two blasts disrupted a political rally in the southern city of Yenagoa, wounding several people
• Bomb attacks in the city of Jos, a flash-point between Nigerian Christians and Muslims, left 80 people dead over Christmas - an Islamist group said it was behind these attacks
• In October, at least 12 people were killed in explosions in Abuja as the country celebrated 50 years since independence from the UK - this was blamed on oil militants

The market is near the Sani Abacha barracks, named after Nigeria's late military dictator, in Asokoro district, home to the presidential palace and said to be the city's most secure area. Officially renamed the Mogadishu Cantonment, the barracks is still known to many by its old name. Source: BBC