Armed robbers seize jewels worth '4 million euros' from Paris Ritz
The gang of five men armed with hatchets arrived at the hotel in Paris' luxurious Place Vendome around 6:30 pm (1730 GMT) before smashing the windows on the ground floor and making off with the jewels.
"World-famous jewellers display their jewellery at the Ritz," a police source said.
A judicial source put the value of the jewels seized at "more than four million euros" ($4.75 million).
Three of the gang were detained while fleeing the scene and an AFP journalist said some roads around the hotel were sealed off by security forces following the incident. Two people were still being sought by authorities on Thursday evening.
Interior minister Gerard Collomb praised officers' "professionalism" saying they had "done our police force credit".
"We heard a loud noise and lots of racket in the street," one hotel employee told AFP. "Passers-by took refuge in the hotel. We didn't know what was going on until someone told us there had been a robbery."
Another employee said he saw a motorbike speed along a road at the back of the hotel after the break-in.
Paris prosecutors have opened a probe into armed robbery, according to a judicial source.
Place Vendome, with its opulent window displays, has been the scene of several audacious daytime raids.
In March 2016, two robbers stole an estimated six million euros worth of jewels from luxury fashion brand Chopard after threatening employees with a gun and grenade. Three men were charged in connection with that heist.
Security had been boosted in the area, which also houses France's justice ministry, in 2014.
The French capital's most high-profile recent jewellery theft was carried out in October 2016 against US reality television star Kim Kardashian.
Five men, some wearing jackets with police insignia, held Kardashian at gunpoint, making off with several pieces of gold and diamond jewellery as well as a ring -- a total estimated worth of nine million euros.
One of the robbers, fleeing the scene on a bicycle, dropped a diamond-encrusted cross worth 30,000 euros, which was found by a passer-by a few hours later.
It remains the only piece to be recovered from the heist.
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