(CNN) -- A U.N.-Arab League envoy working for a cease-fire in Syria arrived in Damascus on Friday as warplanes pounded rebels and fighting engulfed the nation. Lakhdar Brahimi "eventually" will be meeting President Bashar al-Assad during a trip expected to last several days, said Brahimi's spokesman, Ahmad Fawzi. Brahimi wants to forge a cease-fire by Eid al-Adha, the Muslim holiday that arrives Thursday, and has been meeting with Middle East leaders to stoke momentum for stopping the violence. Syrian man loses 18 relatives in airstrike "The hurdles are huge. We are appealing to the government to see the benefit of a period of calm where people can breathe. There's not going to be any joy in Eid -- exuberance amongst the Syrian people -- but at least they might bury less than a hundred people a day," Fawzi said, referring to the crushing daily death tolls.
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NEW: More than 80 bodies are found in a mass grave in Deir Ezzor, an opposition group says
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They are among the 245 reported dead on Friday
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U.N.-Arab League envoy Lakhdar Brahimi arrives in Damascus
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Interference to broadcasts coming from Syria, a satellite provider says
At least 245 people, including 20 children, were found dead across @placeholder on Friday, the opposition Local Coordination Committees said.