Frankfurt: German prosecutors said they had raided offices belonging to high-end carmaker Audi Tuesday, the second sweep in a week related to diesel emissions cheating at the Volkswagen subsidiary.

The raids on a private home and offices belonging to Audi in southern German states Bavaria and Baden-Wuerttemberg “focused on the use of technical devices to manipulate emissions data in 3.0-litre V6 diesel motors for sale on the European market,” the authorities said in a statement.

Some 14 people are now under suspicion in the probe into suspicions of fraud and illegal advertising relating to 210,000 diesel vehicles sold since 2009, which also saw prosecutors search the homes of six current and former employees last Wednesday.