At least 14 people have been killed in three separate suicide bomb attacks in Damaturu, northeast Nigeria.
Wednesday's (local time) blasts came after Boko Haram militants this week claimed to have carried out three suicide attacks on the outskirts of the capital, Abuja, last Friday that left 18 dead and 41 injured.
Suspicion will likely fall on the Islamist rebels, who have repeatedly attacked Damaturu during their bloody, six-year insurgency.
Last month, a girl thought to be aged 12 killed six and injured 47 when the explosives she was carrying went off outside a bus station in the Yobe state capital.
National Emergency Management Agency co-ordinator for Yobe state Bashir Idris Garga said the first blast happened at a small food store at a housing estate, killing four.
Another near a mosque killed one, while nine, including a family, lost their lives when another bomber exploded at a Fulani settlement on the outskirts of the city.
Boko Haram has reverted to attacking "soft" civilian targets after last year's land grab that saw it seize towns and villages across Yobe and neighbouring Borno and Adamawa states.