A hotline for people worried their information may have been stolen from the River Cree Casino went active Friday morning.

On Monday the River Cree Resort and Casino discovered it had been the victim of a cyber attack that resulted in the theft of customer and employee information.

It’s not yet known how many people are affected or what sort of customer information was taken, said Vik Mahajan, general manager and chief operating officer of the casino.

He said only the casino was affected, so people who visited just the hotel or restaurants don't need to worry.

In a release, Robert Morin, president and CEO, said they’re in the process of contacting those whose information was compromised.

He also said that cyber security company Mandiant is investigating, and the Alberta Gaming and Liquor Commission, RCMP and the Alberta Office of the information and Privacy Commissioner have been notified.

“We will continue to work with the relevant authorities,” the release said.

“River Cree values the trust our patrons place in us and are strengthening our data security practices.”

Mahajan said the problem was discovered when the casino’s computer systems slowed down at the start of the week.

“It started with our systems going down and not working properly, and with the involvement of our IT people,” he said.

He said they’re confidence the problem has been contained, so future visitors to the casino shouldn’t be affected.

The River Cree Casino and Resort is a casino, hotel and sports complex located just west of Edmonton on the Enoch Cree Nation.