UN Secretary General Ban Ki-moon on Monday strongly condemned the "terrorist attack" that killed more than 90 people and wounded more than 300 others in Sana'a, capital of Yemen, DPA reported.
"This criminal act cannot be justified by any cause," Ban said. "Its perpetrators must be held accountable."
Ban expressed "deep sympathy and condolences to the victims of this heinous act and their families, as well as to the people and government of Yemen."