Miller Coors beers.( www.drinkinginamerica.com)

One of America's largest beer makers, Molson Coors, had to halt production this week the company said.

"Molson Coors experienced a systems outage that was caused by a cybersecurity incident," the company said in a statement. That systems outage has led to a variety of issues for the company, including "brewery operations, production, and shipments," according to an SEC filing.

In short: Hackers forced the maker of Coors to stop making beer.

Molson Coors is America's second-largest beer producer, behind only SAB owner Anheuser-Busch, according to the Brewer's Association. The company brews its namesake brands Molson and Coors, as well as Miller, Blue Moon, Leinenkugel's, Redd's Hard Apple, and Topo Chico Hard Seltzer, among others.

It's unclear how much of the company's beer production has been halted by the breach, nor is it clear how this will impact the company's expected production.

A Molson Coors representative did not respond to request for comment as of publishing.

The SEC filing said Molson Coors, "is working around the clock to get its systems back up as quickly as possible."

No timetable was given on when the company expects to return to normal production. Molson Coors has "engaged leading forensic information technology firms and legal counsel," the filing said, and it's investigating the breach.

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