Two female suicide bombers killed more than 60 people at a refugee camp in the northeast Nigerian town of Dikwa, Reuters reported on Wednesday, citing military and emergency officials.
The camp is located about 85 kilometers (50 miles) outside the capital of Borno state, center of the seven-year insurgency by the jihadist group Boko Haram.
The attack took place on Tuesday, but a breakdown in the telephone system prevented the incident being made public earlier, the news agency said.
The two attackers sneaked into an internally displaced persons (IDP) camp and detonated themselves in the middle of it.
The chairman of the State Emergency Management Agency, Satomi Ahmad, added that 78 people were injured.
No group claimed responsibility but the attack bore the hallmarks of Boko Haram, which has frequently used female bombers and even children to hit targets.
The militant group has recently increased the frequency and deadliness of attacks with three at the end of January.
At least 65 people were killed outside Borno state capital Maiduguri on Jan. 31.
Since it lost territory to a government counter-offensive last year, Boko Haram has reverted to hit-and-run attacks on villages and suicide bombings at places of worship or markets.
Boko Haram has only rarely targeted camps housing people displaced by the conflict and Tuesday’s attack was the first one to kill victims in Borno state.
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