Yobe State

Men armed with knives slit the throats of three North Korean doctors in a pre-dawn attack Sunday in a volatile town in northeastern Nigeria in the latest in a spate of such killings in recent months, police said.

Men armed with knives slit the throats of three South Korean doctors in a pre-dawn attack Sunday in a volatile town in northeastern Nigeria in the latest in a spate of killings of foreigners in recent months, police said.

Armed men killed three Chinese doctors in a pre-dawn attack Sunday in Nigeria's volatile northeastern town of Potiskum, police said, in the latest such killings in recent months.

Nigerian soldiers killed four suspected extremists and lost one policeman in the latest crackdown on the Islamist Boko Haram group in the country's restive northeast, the military said on Sunday.

Gunmen armed with explosives attacked a police station, a primary school and two cellphone towers in a town in Nigeria's restive northeast before dawn on Sunday, setting them ablaze, the military and residents said.

An explosive device targeting a military patrol went off Sunday on a road in Nigeria's northeastern city of Potiskum, setting the vehicle on fire, military and residents said.

A group of armed men killed a policeman on Sunday in the tense northeastern Nigerian city of Damaturu, which has been hit by several attacks carried out by Islamists in recent months, residents said.

Nigerian troops killed one person during a raid on a suspected hideout of Islamist group Boko Haram in the restive northeastern city of Damaturu, a hospital source and residents said Saturday.

Nigerian troops have arrested a suspect in the Christmas Day bombings that killed at least 44 people, state television reported, as Washington put three Boko Haram leaders on its global terror list.

Fresh clashes broke out on Wednesday in an area of northern Nigeria already under a round-the-clock curfew after three previous days of attacks and reprisal violence killed at least 101 people.

Soldiers and police patrolled the empty streets of two Nigerian cities on Wednesday after three days of violence left at least 101 people dead, with some residents still unable to return home.

Gunfire and rioting rocked two northern Nigerian cities on Tuesday in a fresh round of unrest, prompting authorities to slap curfews on both after weekend violence killed 52 people.

Nigerian authorities slapped a round-the-clock curfew on Damaturu Tuesday as fresh gunfire rocked the restive northeastern city, officials and residents said.

Gunmen killed five people, including a police officer and a politician, at a bar in Nigeria in an area previously hit by a bomb blast blamed on Islamists, residents and a doctor said Wednesday.

Nigerian Islamists shot dead a seven-year-old girl in a failed attempt to kill her policeman father, one of a spate of Easter weekend attacks that claimed over 40 lives, officials said Monday.

Nigerian Islamists shot dead a seven-year-old girl during a failed attempt to kill her policeman father hours after group members killed three in a separate raid, the army and police said on Monday.

Nigeria was on high alert after the United States warned of fresh attacks following a wave of deadly blasts claimed by Islamists that killed 150 people in the northeast of the country.

KANO, Nigeria (Reuters) - At least 65 people were killed in the northeast Nigerian city of Damaturu, an aid agency said Saturday, after Islamist insurgents bombed churches, mosques and police stations and fought hours of gun battles with police.

A cholera epidemic that has killed more than 350 people in Nigeria since the start of the year now poses a threat to the entire country, the health ministry said on Wednesday.

The death toll from cholera and a related disease in northern Nigerian has risen to 283 from 231 within a week, according to various official figures.