(Telecompaper) The Spanish regulator CNMC (National Commission for Markets and Competition) announced that it has initiated an investigation into the network-sharing agreement between Telefonica and Yoigo that could lead to sanctions against the two operators. The CNMC, which last month absorbed telecoms regulator CMT and competition watchdog CNC, stated that it would be investigating whether the agreements between the two companies for the use or deployment of mobile networks and for joint commercial distribution could amount to a restriction of competition.