Militants took over a city council building days before . 121 people killed , At least 34 wounded in suicide attack . Suicide bomber attacks police checkpoint in Hilla . Syria has been beset with political and sectarian violence for the deadliest year .
121 people killed , At least 34 wounded in suicide attack . Suicide bomber attacks police checkpoint in Hilla . Syria has been beset with political and sectarian violence for the deadliest year .