The European Commission has decided to open two separate antitrust investigations against the Polish and Slovak incumbent telecoms operators, Telekomunikacja Polska and Slovak Telekom, for suspected breaches of the EC Treaty's prohibition of abusive practices (Article 82). The opening of formal proceedings follows inspections carried out in September 2008 in Telekomunikacja Polska and in January 2009 in Slovak Telekom. The Commission proceedings focus on suspicions of abusive behaviour that may prevent or hinder competition on broadband internet access and other electronic communications markets in Poland and in Slovakia.