Attackers kill 3 North Korean physicians in Nigeria, official says
February 15, 2013 -- Updated 1428 GMT (2228 HKT)
- The doctors were assisting a local hospital, police chief says
- Ten suspects have been arrested, but police don't know who's behind the slayings
- On Friday, nine health workers giving polio vaccinations were killed in Nigeria's largest city
Lagos, Nigeria (CNN) -- Three North Korean doctors serving at a hospital in Nigeria's northern Yobe state were killed early Sunday morning, police said.
There were mixed reports initially on where the victims were from, but the police chief of Yobe told CNN they were North Korean physicians assisting at Potiskum General Hospital as part of a government agreement.
The government in Pyongyang has not confirmed that the victims were North Korean nationals.
Authorities say 10 suspects are under arrest.
Nigerian president: Boko Haram 'threat'
Nigerian doctor helps pregnant women
"At this point we cannot say if they are Boko Haram, hired killers or common criminals, but we have cordoned off the area and are in the process of interrogating them," Commissioner Sanusi Rufa'i said. Boko Haram is an Islamist militant group that has carried out scores of attacks across the north over the years.
READ: Nigeria captures top Boko Haram figure
The group, whose name means "Western education is forbidden," has referred to itself as the Nigerian Taliban. It seeks to overthrow the government and replace it with a regime based on Islamic law.
Sunday's predawn slayings came on the heels of another deadly attack against medical workers. On Friday, nine health workers who were administering polio vaccinations were killed in Kano, the biggest city in northern Nigeria.
The victims, eight women and one man, were working for a government program established to vaccinate people across Nigeria.
Today's five most popular stories
Part of complete coverage on
October 24, 2014 -- Updated 0242 GMT (1042 HKT)
Successful launch of lunar orbiter, seen as a precursor for a planned mission to the surface of the moon, marks significant advance for the country's space program.
October 23, 2014 -- Updated 1915 GMT (0315 HKT)
Cpl. Nathan Cirillo, shot while standing guard at Ottawa's National War Memorial, was known for his easygoing manner and smile.
October 22, 2014 -- Updated 2006 GMT (0406 HKT)
Non-stop chatter about actress' appearance is nasty, cruel, hurtful, invasive and sexist.
October 23, 2014 -- Updated 2208 GMT (0608 HKT)
CEO's 30-min Putonghua chat is the perfect charm offensive for Facebook's last untapped market.
October 24, 2014 -- Updated 0345 GMT (1145 HKT)
Chinese leaders want less odd architecture built in the country.
October 22, 2014 -- Updated 2058 GMT (0458 HKT)
Air New Zealand's new 'Hobbit' safety video stars Peter Jackson, Elijah Wood, elves and orcs.
October 23, 2014 -- Updated 1414 GMT (2214 HKT)
A 15-year-old pregnant girl is rescued from slavery, only to be charged with having sex outside of marriage, shocked rights activists say -- a charge potentially punishable by death.
October 22, 2014 -- Updated 0333 GMT (1133 HKT)
After sushi and ramen, beef is on the list of must-eats for many visitors to Japan.
October 20, 2014 -- Updated 1607 GMT (0007 HKT)
Airports judged on comfort, conveniences, cleanliness and customer service.
October 22, 2014 -- Updated 1748 GMT (0148 HKT)
Scientists use CT scans to recreate a life-size image of the ancient king.
October 22, 2014 -- Updated 0959 GMT (1759 HKT)
Despite billions spent on eradicating poppy production, Afghan farmers are growing bumper crops, a U.S. government report says.
October 24, 2014 -- Updated 1021 GMT (1821 HKT)
Each day, CNN brings you an image capturing a moment to remember, defining the present in our changing world.
Browse through images from CNN teams around the world that you don't always see on news reports.