(CNN) -- One person was killed Thursday when a stage being built for a Madonna concert collapsed in Marseille, a fire department spokesman in the southern French city said.


Madonna performs during a concert at the Werchter Boutique festival in Belgium last weekend.

Another two people, one British and one American, were severely injured, and four were lightly injured, officer David Goddin told CNN.

"At this point we don't know how it happened, but we are confident no one else is still under the rubble," Goddin said.

About 27 fire engines and 80 firefighters responded to the emergency when the stage collapsed at 5:15 p.m. (1515 GMT).

Madonna is due to play the first of five concerts for the U.S. singer's "Sticky and Sweet" tour at the Stade Velodrome on Sunday.
[Edited 7/16/09 10:27am]

Per request