Tunisian security forces have arrested the nephew of Berlin market attacker, Anis Amri, and two other suspects, officials say.
The Tunisian Interior Ministry, said the three, aged between 18 and 27, were members of a “terrorist cell”, and that they were detained on Friday.
This followed a lorry attack on Monday, on a Christmas market, which left 12 people dead and 49 injured.
Tunisian-born Amri, 24, was shot dead by police in the Italian city of Milan in the early hours of Friday.
German authorities said fingerprints they provided, confirmed the dead man was Amri.
Sixteen persons have been killed in a suicide bomb attack on a mosque in Yola, the capital of Adamawa State in north-east Nigeria.
The attack, which eyewitness said was carried out by a young girl, also left about 56 persons injured.
According to Channels Television’s reporter in Yola, the blast happened when worshipers were preparing for prayers on Friday.
Eyewitness said the young girl had entered the crowded new mosque in Jambutu, which was being commissioned, unnoticed and detonated her strapped explosive, killing 16 persons.
Some of the injured persons are receiving treatment at the Federal Medical Centre in Yola.
The Governor of the State, Bindo Jibrilla, has visited the victims receiving treatment at the hospital and he described the incident as ‘most unfortunate’.
Meanwhile, some of the residents in the area had protested what they perceived as poor handling of the situation by soldiers, forcing the troops to shoot into the air.
The attack happened hours after a suicide bomb attack left six people dead in the early hours of Friday at a Mosque behind a Magistrate Court around the Polo area of Maiduguri, Borno State.
No group has claimed responsibility for both attacks.
But a terrorist group, Boko Haram, has carried out similar attacks in the past.