INDIANAPOLIS, Indiana: US manufacturer TYR Thursday announced it was filing a civil complaint against FINA over the list of competition swimsuits approved by world swimming's governing body on June 22.

"TYR has instructed its legal counsel to file a complaint with the Tribunal de Grande Instance de Strasbourg, France," a statement from the California company said.

"TYR will be asking the court to nominate an independent legal expert to determine why some suits have been approved by FINA while nearly identical suits from TYR were not."