The Eiffel Tower stands dark after 129 were killed in terror attacks across Paris. Photo: Paris.

The Eiffel Tower stood dark in a symbol of mourning Saturday night as France struggled to absorb the deadliest violence on its soil since World War II: coordinated gun-and-suicide bombing attacks across Paris that left 129 people dead and 352 injured.

President Francois Hollande vowed that France would wage “merciless” war on the Islamic State group, which claimed responsibility for the mayhem, as investigators raced to track down their accomplices and uncovered possible links to networks in Belgium and Syria.

Read full story at The Associated Press.