The head of the Arab League is warning that the failure of an Arab-brokered plan to end the violence in Syria would have disastrous consequences. Secretary-General Nabil Elaraby expressed "deep worries and regret for the continuation of violence all around Syria." The Arab peace plan unraveled on Friday as Syrian security forces killed more than 15 people among thousands of protesters who took to the streets to test whether the regime was serious about ending violence against protesters. Elaraby warned Saturday that "the failure of the Arab solution will have disastrous consequences in Syria and the region." He urged the Syrian government to take "immediate measures ... to protect civilians."