Arab capitals are expecting further violent clashes after the killing of three demonstrators in the Gulf state of Bahrain, and the reported death of 15 people in violence in Libya, threatened an escalation of regional unrest in the wake of the popular uprisings in Egypt and Tunisia.

Fresh protests are expected today after Friday prayers in Manama, the capital of Bahrain, in Cairo (in celebration of Hosni Mubarak's departure a week ago), and in Sana'a, capital of the Yemen, and perhaps elsewhere.