beirut shell kill three people last major rebel stronghold near damascus tuesday war monitor say shortly un syria envoy say government agree ceasefire russia monday propose ceasefire besiege eastern ghouta area nov. 28-29. u.n. syria envoy staffan de mistura late say russia tell syrian government accept idea add see happen syrian observatory human right war monitor say three deaths 15 injuries tuesday shell less intense previous days witness area say shell light early day intensify late syrian official say situation tuesday calm un humanitarian agency ocha say tweet relief team enter eastern ghouta food health supply 7,200 people enter nashabiyeh opposite side pocket fight weekend government air strike shell ghouta intensify kill least 43 people sunday monday observatory say syrian state media say 13 shell hit government-held areas damascus monday eastern ghouta one several de-escalation zone across western syria russia broke ceasefire deal rebel president bashar al-assad government fight continue u.n.-backed peace talk geneva set begin tuesday government delegation arrive wednesday attend talk state news agency sana report opposition delegation syrian negotiation commission call direct negotiations government instead previous model side speak un mediators decins sans fronti res international medical humanitarian organization say monday hundreds people wound intense bomb shell eastern ghouta last two weeks say five msf-supported field hospitals east ghouta treat 576 wound patients record 69 deaths quarter wound women children age 15. statement msf say figure account total number kill area medical facilities support regularly damascus shell kill three truce agree