Israel has clear evidence of Syrian President Bashar Assad's army using chemical weapons against rebels, a senior diplomatic source said Monday.
The official said the information is known to all intelligence agencies, and that there is no doubt the Assad regime had used weapons of mass destruction against opposition forces fighting to topple him.
Israel should be more concerned about the possibility of the chemical weapons leaking to Hezbollah or other terrorist groups in Lebanon, the official said.
He also estimated the civil war is a long-term conflict and will not be resolved quickly.Lahav Harkov contributed to this report.
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