The UK Gambling Commission (UKGC) has temporarily suspended the operating license of Isle of Man-based 666Bet.

On Friday, the UKGC posted a notice saying it had “commenced a review under section 116 of the Gambling Act 2005” of the license held by Metro Play Limited, which covers both the Metroplay.com and 666bet.com sites.

The review was necessary because the UKGC suspects that Metro Play Ltd. is “unsuitable to carry on the licensed activities (section 120(1)(d) of the Act) and considers it appropriate to suspend the license with immediate effect pending the conclusion of the review.”

The UKGC said the license suspension was “an interim measure, the need for which will be kept under consideration whilst the review takes place.” In the meantime, the UKGC ordered Metro Play Limited to settle any outstanding winning bets and return any outstanding balances to customers.