Entercom Communications won’t confirm reports that it has been crippled by a companywide ransomware attack, affecting email, internet, telephones, music scheduling, production, billing and other internal digital systems.

“We are experiencing a disruption of some IT systems, including email,” a company statement said. “We apologize for any inconvenience and are working around the clock to resolve this issue.”

RadioInsight.com reported a $500,000 ransom demand, which the trade publication said the company does not plan to pay.

Entercom owns 235 radio stations nationwide.