NEW : Mortar and car bomb attacks killed nearly 100 people , report says . Syria : A car bomb in Homs ' al - Zahra neighborhood kills 40 , state news agency says . The car bomb targeted an Alawite area , says the Syrian Observatory for Human Rights . A weapons watchdog says it is investigating chlorine gas attack claims .
NEW : Mortar and car bomb attacks killed nearly 60 people , report says . NEW : A car bombing in Homs ' al-Zahra neighborhood kills 40 , state news agency says . The car bomb hits an Alawite area , says the Syrian Observatory for Human Rights . Chemical weapons watchdog says it is investigating chlorine gas attack claims .