In a sign of possible civil war, thousands left Yemen’s capital, Sanaa, Saturday following an attack that had wounded President Ali Abdullah Saleh. In retaliation, Yemeni forces shelled the homes of the leaders of a tribal federation opposed to Saleh, according to MSNBC. Meanwhile, BBC News reported that Saleh, along with four other officials, had left Yemen for Saudi Arabia for hospital treatment, though it is uncertain for how long he will be there. Though he hadn’t appeared in public, Saleh offered an audio message in which he saluted the armed and security forces for confronting “an outlaw gang” for the attack. The unrest in Yemen has claimed almost 200 lives.