ISTANBUL - Syria's splintered opposition leaders reunited under an opposition umbrella group on Tuesday in a bid to show the world they can form a real alternative to President Bashar Assad.

At the same time, Assad's opponents grouped around the Syrian National Council (SNC) remained skeptical of a peace and ceasefire plan drawn up by UN and Arab League special envoy Kofi Annan if that plan did not lead to Assad's removal.

The Syrian government said on Tuesday it had accepted Annan's plan, but some SNC members dismissed Assad's word.

"He is buying time. It means more killing. He is playing games," said Adib Shishakly. "Every hour we are losing five people. So really, time is life."

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