PHOENIX — A Tucson television station's broadcast of the Super Bowl on Sunday was interrupted for some viewers by about 30 seconds of pornographic material, the station said.

A short clip from an adult movie channel showing full male nudity interrupted the Comcast feed came just after the Arizona Cardinals' Larry Fitzgerald scored on a long touchdown reception during the final minutes of the game, the Arizona Daily Star reported.

The 30-second interruption was from the adult film Club Jenna and showed a woman unzipping a man's pants followed by a sexual act between the two, the paper reported.

"I just figured it was another commercial until I looked up," Arizona resident Cora King told the Daily Star. "Then he did his little dance with everything hanging out."

A Comcast spokeswoman said she had "no idea" how the porn got into the feed. KVOA TV  said it will investigate the incident.

"When the NBC feed of the Super Bowl was transmitted from KVOA to local cable providers and through over-the-air antennas, there was no pornographic material," KVOA president and general manager Gary Nielsen said in a statement.

The KVOA statement said the station was dismayed and disappointed that some Comcast customers and their families were subjected to the material.

"KVOA will continue to investigate what happened to our clean signal and make sure our viewers get answers," Nielsen said in the statement.

Comcast spokeswoman Tracy Baumgartner confirmed that the company's standard feed was interrupted during the Super Bowl, although she said its high definition feed was not.

Baumgartner said engineers were investigating Sunday night.

Tucson media outlets reported that they received calls from irate viewers about the pornographic material.

A spokesman for Cox Cable said the company had not been affected.

"We have received no evidence that any inappropriate material was broadcast on any of our channels during the Super Bowl," Mike Dunne said. "The alleged incident appears to be isolated to the Comcast territory. We will offer our support to all appropriate organizations to help them determine what happened."

Joel Hilander of Tucson told The Associated Press that he and his young children saw the clip.

"I couldn't believe it. And I couldn't believe that my children were watching it either," Hilander said.