The U.S. government is offering a SEVEN MILLION DOLLAR reward for information that would lead to the capture of Abubakar Shekau, leader of the Boko Haram.

United Nations - The UN Secretary-General, Ban Ki-moon, on Tuesday called on all extremist groups in Nigeria to cease their attacks, after dozens of people were killed in the north-east part of the country.

The Islamic terrorist group, Boko Haram, burst into a mosque where scores of people were praying and started shooting, leaving at least 44 dead.

Following the havoc, the U.S. government is offering a seven million dollar reward for information that would lead to the capture of Abubakar Shekau, leader of the sect.

"The Secretary-General strongly condemns the recent violent attacks that have killed scores of civilians in the localities of Mafa and Kondugo in Borno state,” his spokesperson, Martin Nesirky, said in a statement.

According to the statement, Ban called on all parties to resolve their differences through dialogue and other peaceful means.

"The Secretary-General reiterates his firm conviction that no objective can be attained through such violence,” the statement added.