Saudi urges pressure on Syria, withdraws monitors

CAIRO (Reuters) - - Saudi Arabia said on Sunday it was withdrawing its observers from Syria after an Arab monitoring mission failed to end 10 months of bloodshed, and called on the international community to exert "all possible pressure" on Damascus.

Hundreds of Syrians have been killed since the observers began their work in late December and political opponents of Syrian President Bashar al-Assad are demanding the Arab League refer the crisis to the United Nations Security Council.