THE United States trade authorities said on Tuesday they have filed a labour complaint with Mexico over allegations that a Volkswagen auto plant in central Mexico unfairly sacked union activists.

The US Trade Representative’s office said on Tuesday the complaint includes the temporary suspension of tariff benefits for vehicles and parts produced at the VW plant in Puebla, just east of Mexico City.

The complaint was the 23rd filed for alleged labour abuses in Mexico under the US-Mexico-Canada Agreement.