Fighting broke out again in the Yemeni capital of Sana'a today even as Prime Minister Ali Mohammed Mujawar and four other senior Yemeni officials wounded in yesterday's shelling of the presidential compound were flown to Saudi Arabia for treatment.Forces of President Ali Abdullah Saleh shelled the homes of anti-government leaders. Sporadic rocket fire and firefights erupted in the al-Hasaba district of northern Sana'a, the home base of dissident tribesman Sheikh Sadiq al-Ahmar. He is a leader of what Saleh said was a “gang of outlaws” that carried out a rocket attack on the presidential compound Friday. Thousands fled the city today and roads were clogged at daybreak. Seven people were killed in the rocket attack yesterday, including key government officials, while Saleh was lightly wounded as the group attended prayers at a mosque inside the presidential compound.