Singen (dpa/lsw) – Twelve workers are said to have worked illegally on a construction site in Singen for weeks. According to the main customs office in Singen on Tuesday, the men worked for a Slovenian company that carries out electrical work on the construction site for a larger building.

During a routine check at the beginning of October, according to the main customs office, the workers in question could not present any work permits. The men come from Bosnia and Serbia. The public prosecutor’s office in Konstanz is now investigating the people without a valid residence permit and their employers.