Kofi Annan, The UN and Arab League envoy to Syria, has said he has received assurances from Damascus that it will respect the ceasefire plan he has previously proposed.
Mr Annan who has been visiting Iran said there could be “improved conditions on the ground” by Thursday morning. However the Syrian government had previously failed to withdraw troops and weaponry from large population centres as it had agreed. So far at least 100 people have been reported dead. Three people were killed on Wednesday after violent shelling in the city of Homs and the Deraa province.
Mr Annan told reporters in Tehran that he had received “further clarifications” from the government of President Bashar al-Assad on how it intended to suspend hostilities, and respect his six-point peace plan.
Mr Annan said “We have been in touch with them and have had positive answers from them and have also approached governments with influence to ensure that all parties respect the ceasefire”
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Heavy artillery fire has been rocking Homs, as Syrian troops step up an assault on the restive city.
A BBC correspondent there describes almost constant blasts, in the fiercest attack in the 11-month uprising.
US President Barack Obama said it was important to resolve the conflict without outside military intervention.
Meanwhile, Russia and China defended their veto of a UN draft resolution criticising Syria – a move that angered opponents of President Bashar al-Assad.
Later the US State Department said it had closed its embassy in Damascus and pulled out all remaining staff because of security concerns.