Intel sites across Europe, including the company's headquarters at Swindon, have been raided by officials from the European Commission as part of an ongoing competition investigation into the chipmaker.
Other IT firms, including manufacturers and distributors, have also been raided by commission officials as part of the investigation. The officials have been accompanied by staff from national regulatory bodies.
Following an investigation by Japanese regulators, which found that Intel had acted anti-competitively in the Japanese processor market, the commission launched its own investigation this spring.
Rival chipmaker AMD is currently suing Intel for allegedly operating anti-competitively across world markets, including Europe.
Intel denies all the charges.