ABUJA (Reuters) - The vast majority of almost 2 million Nigerians driven from their homes by the conflict with Boko Haram cannot return because of a lack of security, an aid agency said on Wednesday.

Almost all of the 30 candidates running for president of Central African Republic now support the election despite calls this week by 20 of them for the vote count to be stopped, the U.N. peacekeeping mission said on Wednesday. About 77 percent of votes have been counted in the Dec. 30 election t...