Anti-goverment protesters perform their Friday prayers on the street leading into the New University area in Sana’a, Yemen, March 18, 2011. GLENN GUAN/The Star (Yemen)

Anti-goverment protesters chanting slogans with yellow playcards that reads “GO OUT” during a demonstration demanding the resignation of President Ali Abdullah Saleh in Sana’a, Yemen, March 18, 2011. GLENN GUAN/The Star (Yemen)

A wounded anti-goverment protester being carried to a temporary hospital setup at a mosque near the square in Sana’a, Yemen, March 18, 2011. Snipers open fire at anti-goverment protesters after the friday prayers. GLENN GUAN/The Star (Yemen)

Helping the wounded: Anti-goverment protesters being treated at a temporary hospital setup at a mosque near the square in Sana’a, Yemen, March 18, 2011. Snipers open fire at anti-goverment protesters after the friday prayers. GLENN GUAN/The Star (Yemen)

Hungry for food and freedom: Libyan evacuees reaching out for food from Tunisians at the border in Ras Ajdir. Some of them have not eaten for three days. They are among about 10,000 waiting anxiously to get out of Libya. GLENN GUAN/The Star (Tunisia)

Humanitarian crisis: Egyptian workers waiting to enter Tunisia in Ras Ajdir after fleeing Libya. The United Nations estimates that about 100,000 foreigners have left Libya in the past week while about 20,000 are still waiting to flee Libya through the Tunisian border. GLENN GUAN/The Star (Tunisia)