UN Secretary General Ban Ki-moon urged Libyan authorities to end violence against civilians in a press conference held in Cairo Monday with Arab League (AL) chief Amr Moussa.

He said that Libya must end violence immediately and it is vital that the world speak as one on the issue of Libya.

He also urged Yemen to end violence against civilians and start economic, political and social dialogues, and called on all sides in Bahrain to keep restraint and respect human rights.

Ban arrived in Egypt on Saturday after meeting in Paris with European, Arab and African leaders to discuss "ways to move forward to protect the people of Libya" following the adoption of UN Security Council Resolution 1973 on Thursday to impose a no-fly zone in Libya.

Ban Ki-moon will travel to Tunisia later.