The Chinese anti-corruption agency says it is investigating one current and one former manager at Volkswagen's main joint venture in China.

The Central Commission for Discipline Inspection said Tuesday it is investigating a former deputy general manager of First Auto Works-Volkswagen and a deputy manager of the venture's Audi division.

The one-sentence statement said the two, identified as Li Wu and Zhou Chun, are suspected of "serious violations" but gave no other details.

FAW-Volkswagen is a joint venture between the German automaker and state-owned FAW Group Corp. Phone calls to FAW and to VW spokespeople were not answered.