A cable channel was knocked off the air Thursday morning by what’s being called a malicious software attack. CNN reports that The Weather Channel was the victim of the attack.

“The network’s morning show, ‘AMHQ,’ which had been due to start at 6 a.m. ET, was unable to go on air. Instead viewers saw taped programming, ‘Heavy Rescue: 401,'” CNN reports. “The ‘AMHQ’ show returned to the air at 7:39 a.m. ET with a commercial break, and at 7:43 a.m., its anchors announced the reason for their absence.”

The report quotes anchor Jim Cantore saying: “The Weather Channel, sadly, has been the victim of a malicious software attack today.”

Added anchor Stephanie Abrams: “Yes, and it has affected our ability to bring you your weather information. So we just wanted to say thank you again for your patience and we want to get right to today’s severe weather.”

The Weather Channel sent out a tweet updating viewers on the situation, which you can see below. The tweet includes the note: “Federal law enforcement is actively investigating the issue.”