A waiter in France was shot to death Friday night after a customer was allegedly enraged by having to wait too long for his sandwich.

The incident happened at a small restaurant in Noisy-le-Grand, a suburb located in eastern Paris.

A witness told Agence France-Presse the gunman became irate "as his sandwich wasn't prepared quickly enough," shot the waiter, and then fled the scene.

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The waiter's colleagues then called police after he was shot in the shoulder. The 28-year-old later died at the scene.

Policemen stand in front of the eatery on Saturday where a waiter was shot dead by a customer allegedly angry at having to wait for a sandwich, in the eastern Paris suburb of Noisy-le-Grand. (Photo by Tiphaine LE LIBOUX / AFP)

Police told AFP that a murder investigation has been opened and the gunman is still on the loose.

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Area residents told Le Parisien newspaper the restaurant had opened three or four months before the deadly shooting. Some noted, however, the neighborhood has a high crime history, including drug-dealing and public drunkenness.

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Others were shocked at the possibility of someone being killed over a slow order.

"It is sad," a 29-year-old woman told AFP. "It's a quiet restaurant, without any problems."