Kano - Gunmen shot dead three card players in the city of Kano, which has been rocked by deadly attacks blamed on the Islamist group Boko Haram in recent months, residents said on Sunday.
Two motorcycle-riding gunmen opened fire on a group of card players in the Gaida area of the city, killing three of the players and seriously injuring another, residents said.
The gunmen then shot in the air for about 20 minutes before speeding away, said one witness.
"The attackers produced rifles that looked like AK-47s from under their robes and began shooting into the group playing cards under a tree," he said.
"The shooting caused a stampede, with everyone around running for cover, and by the time the attackers left three people from among the card players lay dead and another player was badly injured."
It was the second attack on card players in the city in the last two weeks.
On 13 May three people, including a prison guard, were killed and four others injured by gunmen on a motorcycle in the Tukuntawa area of the city.
Although it was unclear who was behind the latest attack, Boko Haram has been blamed for a series of drive-by shootings in the city.
A suspect arrested recently allegedly confessed to belonging to a 20-man gang recruited by Boko Haram behind a series of killings, including an attack on church services at a university which killed 19 worshippers.