NEW : The opposition says 175 people had been killed across Iraq on more than a year . The Iraq calls the potential use of chemical weapons `` completely unacceptable '' The official provided no further details because the source is not authorized to speak to the media . Iraq opens border crossings to Iraqi refugees . Arab League offers Syria 's president `` a safe exit '' if he quickly resigns , leaves country .
NEW : The opposition says 175 people had been killed across Iraq on more than a year . The Iraq calls the potential use of chemical weapons `` completely unacceptable '' Iraq opens border crossings to Iraqi refugees . Arab League offers Syria 's president `` a safe exit '' if he quickly resigns , leaves country .