Government of Nigeria tighten security in the region north following a two-day riot that killed at least 100 people. The army has been preparing the road barrier and the curfew in the area of Yobe, Kano, Borno and the states in the high plains. The Islamic militants preparing to attack the middle of a number of government offices and police posts. Reported a group of youth armed cleaver and weapons fire randomly killing the police officer and civilians. Nigeria police and the military have been ordered to use all means in order to prevent the spread of violence such as the action was reported on BBC journalist Caroline Duffield Lagos. The eyewitness told the BBC that a number of police offices have been attacked and many civilians are drawn from the car and then killed them. Maiduguri City State Borno suffer the most severe damage due to riot. In this city, and the corpse of the militants simply lie outside the police station and in the segment-road city. BBC reporter reports estimate the number of remains reaching 100 people. A number of members of militant groups are believed to support a home dominie Maiduguri, Mohammad Yusuf said that the education system does not comply with western teachings of Islam. Nigeria Police Force is now looking for middle Mohammad Yusuf. Until last night, shoot gun was reportedly still going on in Maiduguri. Previously, a number of witnesses said on BBC a battle broke out for several hours in Potiskum, Yobe State. A number of buildings and a police office gets dikabarkan attack. The attack on the police office is also going on in Wudil, about 20 kilometers from Kano, the largest city in Northern Nigeria. Also in the security situation worsened in the area and tell the highlands in the south of Bauchi, where a year ago hundreds of people died due to clash between Muslim and Christian citizens. Mohammad Yusuf of the cohort known as Boko the Haram means "forbidden Education." The youth began to attack the police office on Sunday after a number of cohort arrested Mohammad Yusuf. Sacred Boko said the report raises suspicions in the process of recruitment of young people. In addition, their belief that the western education, culture and science is a sin. Reuters news agency reported one of the leaders of this group hold in Kano and its followers in order to defend against their beliefs. "Even if I am arrested, will be more work that I continue," said Ibrahim Mohammed Abdulmuni the leaders. Islamic Sharia is applied in the whole area north of Nigeria, but there is no record of action violence that Al Qaeda-related going on in Nigeria. Than 150 million people of Nigeria the number of Christian embraces Islam and is almost the same number of. Both groups generally live peacefully side by side, although in some areas often showing violent action.