[IMAGE: https://gateway.ipfs.io/ipfs/QmbwmZfoGiDEC6rcVa84ask5Vb3vv29LmHPpdSoPUPfrsc]
A police officer cordons off the area after a knife attack in central Paris, Saturday May 12, 2018. (Photo: Thibault Camus/AP)

[IMAGE: https://gateway.ipfs.io/ipfs/QmdLUaUsiqNuJzvZiA2KHgCkK9rmR46FLfEhMStm2Yjmhz]
A dead body lays under a blanket after a knife attack Saturday that left at least two dead including the assailant in central Paris, early Sunday May 13, 2018. (Photo:Thibault Camus/AP)
A dead body lays under a blanket after a knife attack Saturday that left at least two dead including the assailant in central Paris, early Sunday May 13, 2018. (Photo:Thibault Camus/AP)

[IMAGE: https://gateway.ipfs.io/ipfs/QmdPaoVLrV4CwE97TSACLogHEEFJj1F4kD5bFykDb9HrDM]
Scientific police officers investigate after a knife attack in central Paris, Saturday May 12, 2018. (Photo: Thibault Camus/AP)

[IMAGE: https://gateway.ipfs.io/ipfs/QmR1Y3oyGe6Ny2xDg7bPDT7wZj6bmY5fc9mk3c9xEqTz2Q]
Police officers cordon off the area after a knife attack in central Paris, Saturday May 12, 2018. (Photo: Thibault Camus/AP)

[IMAGE: https://gateway.ipfs.io/ipfs/QmXHwCnEXPa2w9WxbUzZxAFcqZ71nNnGKLi6Vx3iNTp2fL]
Policemen stand guard in a street in Paris centre after one person was killed and several injured by a man armed with a knife, who was shot dead by police in Paris on May 12, 2018. (Photo: Thomas Samson/AFP/Getty Images)

[IMAGE: https://gateway.ipfs.io/ipfs/QmXsAsEL9G4FXLdQQypVoQHkSHbPeePFMAk1uBpgXgVfNA]
Policemen stand guard in Paris centre after one person was killed and several injured in a knife attack in Paris on May 12, 2018. (Photo: Thomas Samson/AFP/Getty Images)

[IMAGE: https://gateway.ipfs.io/ipfs/QmeUDjxxcTrmdcHeDyfBi1jrUGDVuaNzYAXVZ7q8rygDWm]
Policemen stand guard in a street of Paris centre after one person was killed and several injured by a man armed with a knife, who was shot dead by police in Paris on May 12, 2018. (Photo: Geoffroy Van Der Hasselt/AFP/Getty Images)

[IMAGE: https://gateway.ipfs.io/ipfs/QmSyvf3ZYgUw7FNaQ7n1JcoMxTem8RyQBx1ADaZtPUKcxs]
Policemen and emergency service members stand in a blocked street in Paris centre after one person was killed and several injured by a man armed with a knife, who was shot dead by police in Paris on May 12, 2018. (Photo: Thomas Samson/AFP/Getty Images)

[IMAGE: https://gateway.ipfs.io/ipfs/QmYX55dYbBNbZ5qoSmEBiAEpd3iTtWRgJW4SyjKc2SWd31]
Policemen stand guard in Paris centre after one person was killed and several injured by a man armed with a knife, who was shot dead by police in Paris on May 12, 2018. (Photo: Thomas Samson/AFP/Getty Images)

[IMAGE: https://gateway.ipfs.io/ipfs/QmPG1G1SUwmuhyDLLpAou38c6WvE1nXdg9egA8MrHCx2Vw]
Policemen stand guard in a street of Paris centre after one person was killed and several injured by a man armed with a knife, who was shot dead by police in Paris on May 12, 2018. (Photo: Geoffroy Van Der Hasselt/AFP/Getty Images)

[IMAGE: https://gateway.ipfs.io/ipfs/QmZiQHJcEArYEFTQnB1jFiv4Gt5BDvenFwohHDcfCC2JNV]
A wounded man is seen on Rue Marsollier in Paris, France May 12, 2018 in this picture obtained from social media.

A knifeman shouting Allahu akbar was shot dead by police in central Paris late Saturday after he killed one person and injured four, prompting a terror probe.

The attack took place near the city’s main opera house in an area full of bars, restaurants and theaters which were brimming on a weekend night.

French President Emmanuel Macron said: “France once again pays the price of blood.” Prosecutors cited witnesses as saying the man shouted Allahu akbar as he went on the rampage, and added that a terror investigation had been launched.

The man attacked five people with a knife, one of whom died, police said. Two were in serious condition and all the victims are in hospital. (AFP)