Belgian police have raided an EU building under construction in Brussels in connection with an investigation into illegal workers.
Dozens of black market workers were arrested, according to local press reports as quoted by EUbserver.
Police spokesman Christian De Coninck said 15 workers were detained and taken away for questioning after the morning raid at the 14-story building, situated in the Belgian-capital's EU quarter, just across from the headquarters of the European Commission.
The construction work was carried out by an external developer, the online edition said.
Around 200 police officers were involved in the action, along with police dogs and 20 vehicles. It was not known how many workers were at the site at the time of the raid.