Imola's hopes of hosting a San Marino Grand Prix next year faded when Formula One's governing body approved an updated calendar without mentioning the Italian circuit.

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The International Automobile Federation (FIA) said its world motor sport council had confirmed a 17-race calendar after meeting in Barcelona.

"It was noted that no agreement was in place for an 18th race and there will continue to be 17 races in the 2007 calendar," it said.

Imola, Ferrari's home circuit, had hoped to win a reprieve after teams agreed unanimously last month to an 18th race and the Italian government confirmed that work would start on modernising the circuit.

An FIA spokesman said there was still no commercial agreement in place between the circuit and Formula One supremo Bernie Ecclestone to allow the race to be scheduled.

The statement, issued before Sunday's season-ending Brazilian Grand Prix, did not say the calendar was definitive, however.

There remains a break between the Bahrain Grand Prix on April 15 and Spain on May 13 that could accommodate Imola.

The FIA confirmed that the European Grand Prix would be dropped and Germany's round shared by Hockenheim and the Nurburgring, with the former hosting next year's race on July 22. It also switched around the Chinese and Japanese races, pending approval of the national sporting bodies, with Japan now due to host a race at Fuji on September 30 before the penultimate round of the season in Shanghai on October 7.