Russia says Syria de-escalation deal takes effect at midnight

(This version of the story corrects the second paragraph to clarify Idlib is not the first de-escalation zone)MOSCOW/BEIRUT (Reuters) - A de-escalation agreement in Syria takes effect at midnight but Russia's air force will continue strikes against Islamic State elsewhere in the country, Russian news agencies cited the Defense Ministry as saying on Friday.The largest of the four de-escalation zones is in northern Syria and includes Idlib province and adjoining districts of Latakia, Aleppo and Ha