Gunmen attacked a prison in the state of Yobe Nigerian and they release the prisoners

Nigerian police announced today, Friday, gunmen attacked a prison state of Yobe, located in northern Nigeria and released the prisoners inside Kano.

A spokesman for the state police Bjadsin Twain, said three attackers and one soldier was killed and two soldiers were wounded in the operation, which took place in the area Damajohn, adding that one of the police buildings had burned in the attack.

On the other hand, said group spokesman Boko Haram responsibility for the attack on the prison, and the release of the detainees, who included members of a group, and also announced the group responsible for attacking a police station and military base in the same state.

The attack came hours after the Nigerian police killed four people, believed to be members of the group in a battle with security forces and the Nigerian military in the city "Maiduguri" state capital "porn" in northeastern Nigeria.

The Nigerian military has said earlier in the arrest of dozens of people, believed to be members of the group Boko Haram during a crackdown on their strongholds in the area Barnawa commercial city of Kaduna, northern Nigeria.

Although the army had not yet issued for the arrest data, the eyewitnesses in the region, they said, that at least 33 people were arrested during the campaign, including 13 Nigeria and the rest from neighboring countries.

The arrest came hours after suspected of belonging to the group assassinated a police inspector in the market "Jamburo" in the city, "Maiduguri" capital of the state, "Borno" north-east Nigeria