(AP) RENO, Nev. - A fight broke out Thursday at a Reno, Nev., clinic giving shots for swine flu when someone reportedly tried to cut in line.

Washoe County Health District spokeswoman Judy Davis says she didn’t have any details of the incident, but it involved people in high-risk groups waiting for a chance to get the shot.

A witness told the Reno Gazette-Journal that a man took a swing at a woman, then jumped on her and they fell to the ground.

They left after a security guard stepped in and broke up the fight.

Davis says 1,200 vaccines were available and 200 to 300 people were unable to get one.

Health officials urged people to be patient and courteous.

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Information from: Reno Gazette-Journal, http://www.rgj.com