BERLIN (AFP) - Air France said one of its flights made an unscheduled stop in Germany on Wednesday after having to change its planned route due to a partial closure of Kazakh airspace.

The A-380 from Shanghai bound for Paris landed at the main airport in the northern German city of Hamburg, said a spokesman for the airline Air France-KLM.

He said the unscheduled landing was a precautionary measure to prevent the aircraft from running out of fuel.

Airspace between Kazakhstan and Kyrgystan on the route was temporarily closed for the launch of a Russian Soyuz spacecraft.

The flight landed in Paris with a delay of more than three hours, the spokesman added.

"Hamburg was a good option because it is an airport the right size to accommodate an A-380," he said.

He was unable to say whether other airlines' flights also had to re-route due to the Soyuz launch.