An Air France passenger jet was forced to make an emergency landing in Kenya after a fake bomb was found in a toilet, the airline says, according to BBC News.

The Boeing 777, on its way from Mauritius to Paris, was evacuated at Mombasa airport and the suspicious device taken away for examination.

Air France chief Frederic Gagey later said it was made of a cardboard box, paper and a timer. He described it as an "extremely aggressive act".

The plane, carrying 459 passengers and 14 crew, had left Mauritius at 01:00 GMT and had been due to fly directly to Charles de Gaulle airport in Paris.

Several passengers from the flight have been questioned by Kenyan police.

Gagey told a news conference that the airline would press charges against those responsible and an inquiry would be held.

But he denied there had been any problem with security checks in Mauritius, saying the device contained no explosives, so would not have been detected.

He said the device appeared to be made of a cardboard, sheets of paper and some kind of kitchen timer, and had been placed in a cupboard behind a mirror in the toilet.

Gagey said he did not know exactly when it had been placed there, but that the cupboard had been checked before the flight so it was assumed that it was put there during the flight.

He said the object was made of material not usually found on the plane.