World bodies meet this week to consider how to respond to the escalating violence in Libya.
Two members of Libya's opposition national council are briefing European parliament members on Tuesday on the turmoil in their country.
The two representatives, Mahmoud Jebril and Ali al-Esawi, of the Benghazi-based provisional council are meeting with the Alliance of Liberals and Democrats for Europe, a large liberal voting bloc in the European parliament. The European Union is to hold a special summit about Libya on Friday.
The Arab League announced Tuesday that it will hold an emergency meeting in Cairo on Friday to discuss developments in Libya.
Meanwhile, the head of the Gulf Cooperation Council has condemned killings by Libya's pro-government forces as "massacres." At a meeting late Monday in Abu Dhabi, the GCC secretary-general, Abdul Rahman Hamad al-Attiyah, said the assaults against Libyan citizens amounted to "crimes against humanity." The grouping of gulf Arab states also urged the U.N. Security Council to establish a "no-fly" zone over Libya.
U.S. President Barack Obama said Monday that world powers are considering a wide range of potential options against Libya, including military action. He also warned supporters of Gadhafi that they would be "held accountable for whatever violence" continues to take place.
Some information for this report was provided by AP, AFP and Reuters.