France has declared a national state of emergency and tightened borders after at least 128 people were killed in a night of gun and bomb attacks in Paris.Eighty people were reported killed after gunmen burst into the Bataclan concert hall and took hostages before security forces stormed the hall.People were shot dead at restaurants and bars at five other sites in Paris. At least 180 people were injured.These are the deadliest attacks in Europe since the2004 Madrid bombings.French President Francois Hollande, visibly shaken, called Friday night's almost simultaneous attacks "a horror" and vowed to wage a "merciless" fight against terrorism.Paris saw three days of attacks in early January, when Islamist gunmen murdered 18 people after attacking satirical magazine Charlie Hebdo, a Jewish supermarket and a policewoman on patrol.Live: Follow the latest developments hereIn pictures: Paris shootingsEyewitness accounts from the sceneThe attack on the 1,500-seat Bataclan hall was by far the deadliest of Friday night's attacks. Gunmen opened fire on concert-goers watching US rock group Eagles of Death Metal. The event had been sold out."At first we thought it was part of the show but we quickly understood," Pierre Janaszak, a radio presenter, told Agence France Presse.
Speaking outside the Bataclan concert hall President Hollande said the attacks were "an abomination and a barbaric act"
"They didn't stop firing. There was blood everywhere, corpses everywhere. We heard screaming. Everyone was trying to flee."He said the gunmen took 20 hostages, and he heard one of them tell their captives: "It's the fault of Hollande, it's the fault of your president, he should not have intervened in Syria".Within an hour, security forces had stormed the concert hall and all four attackers there were dead. Three had blown themselves up and a fourth was shot dead by police.