这是张家口市怀来县艾家沟煤矿事故救援现场（2013年3月1日摄）。记者从河北省张家口市委了解到，2月28日晚8点左右，位于张家口市怀来县的冀中能源张矿集团艾家沟煤矿发生井下压风机着火事故。事故发生时，井下共有13人在抢修作业，目前已造成11人因一氧化碳中毒死亡，另有2人仍在搜救中。新华社记者 程双庆 摄      This is at huailai county ai zhangjiakou coal mine accident rescue site(On March 1, 2013).The reporter understands from hebei zhangjiakou municipal party committee,On February 28, around 8 p.m,Is located in huailai county of zhangjiakou hebei central energy mining group, zhang ai downhole pressure fan fire accidents at coal mines.When the accident happened,Underground 13 people in the rescue operation,Has left 11 people have died of carbon monoxide poisoning,Another 2 is still in search and rescue.The xinhua news agency reporters Cheng Shuangqing perturbation