Boko Haram insurgents attacked a market outside the key northeast Nigerian city of Maiduguri, local people who witnessed the incident told AFP on Saturday.
About 50 gunmen on motorbikes stormed the weekly market in Ngom village, some 20 kilometres (12.5 miles) from the Borno state capital, at about 1:00 pm (1200 GMT) on Friday and opened fire, they said.
The attack came hours after a fierce fight with the Nigerian army in the town of Konduga, 35 kilometres from Maiduguri, during which the military said Boko Haram fighters were routed, lost equipment and suffered heavy casualties.
“They (Boko Haram) came on motorcycles and opened fire on the market. They killed many people,” said Tanimu Goni, who fled to Maiduguri in the wake of the attack.
Another trader, Nafiu Umarari, added: “They fired indiscriminately and killed a lot of people.”