beirut bomb blast kill eight people injure 16 others bus syria homs tuesday state media say cite city health authority islamic state claim attack say blast kill 11 members syrian army official news agency amaq say many passengers university students homs governor talal barazi tell state-run ikhbariya tv blast government-held city hit akrama district near al-baath university footage show people crowd around burn shell vehicle middle street state television say bomb terrorists plant passenger bus explode islamic state militants claim responsibility similar attack homs may car bomb kill four people injure 32 others string bomb strike cities government control syria year include capital damascus tahrir al-sham alliance lead fighters formerly link al-qaeda also claim deadly attack security agencies constantly chase sleeper cells homs police chief say ikhbariya today could sleeper cell could infiltration barazi governor say state enemies try target stability stage victory draw near city homs return full government control may first time since onset syria conflict six years ago help russian jet iran-backed militias damascus government push back rebel factions western syria shore rule main urban center army ally force march eastwards islamic state militants year unite state voice concern syrian russian attack u.s. state department tuesday strongly condemn attack week eastern ghouta believe carry syrian russian jet jet strike crowd residential areas besiege rebel enclave near damascus sunday kill least 27 people aid workers war monitor say deliberate tactics starve syrian civilians include women children block humanitarian medical aid bomb hospitals medical personnel first responders eastern ghouta consider deeply trouble state department spokeswoman heather nauert say urge russia live obligations uphold de-escalation zone eastern ghouta bus bomb kill eight syria 's homs city state media