UPDATED 18/9: Norway’s telecoms watchdog will impose tighter regulation on market leader Telenor over prices it is charging smaller companies to use its mobile network, according to Reuters.

The ruling, designed to improve competition in the country, was passed by the Norwegian Competition Authority (NKOM), which said Telenor’s position in the market was dominant, meaning it had a special obligation to give access to other operators.

NKOM told Mobile World Live that the regulation “relates to access for national roaming, full MVNOs and light MVNOs (former market 15).”

NKOM said Telenor had a market share of more than 50 per cent of all the country’s phone subscriptions, which made up 56 per cent share in total revenues.

Telenor competes with TeliaSonera’s NetCom and Ainmt Holding’s Ice.net in the country, as well as a number of other smaller operators, which make up more than 652,000 mobile connections, according to GSMA Intelligence.

Telenor has just over 4.2 million connections in the country.