Carlton & United Breweries, an Australian-based brewer owned by SABMiller, announced Friday that it has recalled more than 1 million bottles following complaints of broken glass being found within one of the bottles.

The products affected by the recall include Carlton Dry 355mL bottles produced in October with expiration dates of July 19 and 20, 2016, and are marked with a "3" on the carton, or a "3A" or "3B" on the bottles after the expiration date, TIME reported.

Carlton & United, purchased in 2011 by SABMiller, issued a statement revealing that it had recalled its beer due to an unspecified issue "as a result of packaging."

"This sort of thing is rare but we take the quality of our beers seriously," the statement said, according to CNN.

A company spokeswoman revealed that it recalled the products after receiving about a dozen complaints about suspected traces of glass in their beer, prompting the brewer to notify food safety authorities.

An investigation into the cause of the reported chip has been launched by the brewer, but it doesn't believe foul play was involved, the company spokeswoman added, according to Reuters.

The company sells roughly 240 million bottles of Carlton Dry, so the 1 million recalled bottles represents less than one percent of what usually hits store.

Despite that, the recall does come at unwelcome time for the brewer. The holiday season typically yields an abundance of sales for the brewer, and more importantly, the recall will serve to distract SABMiller as it prepares to convince antitrust regulators to approve its $106 billion merger with rival Anheuser-Busch InBev.