UNITED NATIONS, May 6 (Xinhua) -- The UN Children's Fund ( UNICEF) said Tuesday it was outraged by the abduction of Nigerian school girls, and called on abductors to immediately return these girls unharmed to their communities.
"The abduction of eight more girls in Nigeria is an outrage and a worsening nightmare for the girls themselves and for the families of the more than 200 girls who have been stolen from their communities in the last several weeks," the UN agency said in a statement issued here.
More than 200 girls from Chibok community in northeastern Nigeria's Borno State were abducted in April. On Monday, militant group Boko Haram claimed responsibility for the act and threatened to sell the girls.
Nigerian President Goodluck Jonathan said on Sunday in a live TV broadcast, that the whereabouts of the girls remained unknown after all the available means have been tried .
Nigeria, Africa's most populous country, is currently grappling with the insurgency of Boko Haram, a sect seeking to enshrine the Islamic Sharia law in the constitution.
"That the girls are alleged to have been abducted to prevent them from attending school is especially abhorrent," the statement said.
UNICEF called on the abductors to immediately send back these girls unharmed, and implored all those with influence on the perpetrators to do everything they can to secure the safe return of the girls -- and to bring their abductors to justice, it added.
"Our hearts go out to the families of these girls," it said. " UNICEF continues to monitor the situation and expresses its solidarity with the people of Nigeria."