Patrick Smith, editor of publication Africa Confidential, who lives 50 metres from the concert hall, told ABC News 24: "The Bataclan concert hall ... can take about 1,200 people at maximum and this evening the attackers stormed in the front of it.
"There's a kind of cafe bar in the front of it.
"They shot up a lot of people, made their way into the main concert hall and there were at least three attackers it's believed and then they more or less held the entire audience, which could have been as many as 1,000 people, they held them hostage for about an hour," Mr Smith
, who was standing about 10-15 metres away from the theatre when being interviewed, said.
watched as police placed ladders against the building before throwing in stun grenades.