Fears over a possible swine flu outbreak in the United States hit the set of the FOX forensic comedy-drama Bones on Monday. Production on the popular series was shut down for one day after star David Boreanaz became ill with swine flu-like symptoms.

“First time in ‘Bones’ history we are shut down from production,” “Bones” creator Hart Hanson Tweeted. “Damn swine flu! That’s gonna cut into Christmas hiatus.”

But spokesperson for 20th Century Fox TV, which produces the show, downplayed the swine flu stoppage in a statement released late Monday.

“David is out with the flu and the show shut down today since he was in every scene. We hope to resume production tomorrow.”