Nigerian army says it killed No. 2 leader of extremist group Boko Haram
August 16, 2013 -- Updated 0101 GMT (0901 HKT)
Nigerian security forces stand guards during Eid al-Fitr celebration in Maiduguri, Nigeria.
- Boko Haram has attacked various targets in the nation since 2009
- Mamadu Bama is second-in-command of the Islamist extremist group, army says
- He was killed along with his father, who was the group's spiritual mentor
(CNN) -- The Nigerian military said Thursday it killed one of the leaders of the Islamist extremist group, Boko Haram, which has waged an insurgency in the nation for years.
Mamadu Bama was the second-in-command, the military said in a statement.
He was killed this month along with his father, who was the group's spiritual mentor, the military said.
The militant group has not released any statement on the deaths.
Boko Haram threatens U.S. in video
Police: Dozens killed in mosque attack
Boko Haram has attacked various targets in the nation since 2009, murdering and kidnapping Westerners, and bombing schools and churches.
It is suspected to be behind a gruesome mosque killing this week. In that attack Sunday, militants brandishing automatic weapons killed 44 worshipers in the country's troubled Borno state. Around the time of the attack, the group released a video boasting that it was growing stronger.
Boko Haram translates loosely to "western education is forbidden/sinful." It holds all government authority in contempt and wants to establish a state in northern Nigeria under Islamic law.
Human rights groups have accused the Nigerian military of extrajudicial killings in its fight against the militant group.
"Soldiers have allegedly burned homes and executed Boko Haram suspects or residents with no apparent links to the group," Human Rights Watch said in a report this year. "Nigerian authorities have rarely brought anyone to justice for these crimes."
Part of complete coverage on
August 20, 2014 -- Updated 2031 GMT (0431 HKT)
The beheading of U.S. journalist James Foley by ISIS militants brings into focus the risks faced by reporters in conflict zones.
August 20, 2014 -- Updated 1219 GMT (2019 HKT)
In an exclusive CNN interview, Lance Armstrong admits to having a "f**k you" attitude.
August 19, 2014 -- Updated 0858 GMT (1658 HKT)
Summer isn't over yet. These new hotels are keeping it alive and fresh.
August 20, 2014 -- Updated 1535 GMT (2335 HKT)
You've seen her turn on the catwalk, but her income might make your head spin.
August 20, 2014 -- Updated 0036 GMT (0836 HKT)
The pain that Michael Brown's parents are going through is something Sybrina Fulton can relate to. She, too, lost a son in a controversial shooting.
August 19, 2014 -- Updated 0904 GMT (1704 HKT)
19-year-old Udi Segal explains why he won't join the country's military.
August 20, 2014 -- Updated 1758 GMT (0158 HKT)
The sights couldn't be sadder: Animals killed or suffering through war in Gaza.
August 18, 2014 -- Updated 1314 GMT (2114 HKT)
They are the faces of a community on the run. Photographer Warzer Jaff documents the plight of the Yazidis.
August 19, 2014 -- Updated 1150 GMT (1950 HKT)
A cameraman films a massive New York City subway rat charging at him and attacking him. WPIX reports.
Drinkers guzzled an incredible 10.3 billion liters of this brand in 2013, making it the world's No.1 beer. And you may have never heard of it.
CNN joins the fight to end modern-day slavery by shining a spotlight on its horrors and highlighting success stories.
Browse through images from CNN teams around the world that you don't always see on news reports.
Today's five most popular stories