Syrian army units clash with each other over following President Bashar Assad's orders to crack down on protesters in Daraa, a besieged city at the heart of the uprising, witnesses and human rights groups say. More than 450 people have been killed across Syria _ about 100 in Daraa alone _ and hundreds detained since the popular revolt against Assad began in mid-March, according to human rights groups.
Moammar Gadhafi's forces shell civilian areas in the rebel-held city of Misrata, killing 10 people. Regime supporters and opponents battle on another front in western Libya for control of a crossing point along the Tunisian border, killing refugees as they flee.
Yemeni government opponents clash with police in the southern province of Aden, as tens of thousands of protesters rally nationwide to denounce a deadly government crackdown and demand the president's ouster. The street clashes were triggered by a bomb attack by an unknown armed group on a checkpoint in the provincial capital, Krater, and signal the rapid deterioration of security.
A military court in Bahrain sentences four Shiite protesters to death after convicting them of killing two policemen during anti-government demonstrations last month, state media says.