ABUJA, Nigeria - A car bomb tore through the United Nations' main office in Nigeria's capital Friday, flattening one wing of the building and leaving an unknown number of people dead.
A U.N. official in Geneva confirmed to CBS News that it was a bomb attack, and a Nigerian security official told Reuters news agency it was the result of a car bomb.
"I saw scattered bodies," said Michael Ofilaje, a UNICEF worker at the building. "Many people are dead."
He said it felt like "the blast came from the basement and shook the building."
A medical worker at the scene told Reuters at least 10 people were killed and local media said as many as 40 more were injured, but the death toll was not immediately confirmed by officials and many more victims could still be buried by rubble....
Nigeria, a nation of 150 million, is split between a largely Christian south and Muslim north. In recent months, the country has faced an increasing threat from a radical Muslim sect called Boko Haram, which wants to implement a strict version of Shariah law in the nation.