The shooting happened Saturday at the Xiong clan New Year's celebration at the Green Country Event Center, the Tulsa World reported.
Three of the victims have been released from the hospital Sunday while two others remained hospitalized.
Police said two people -- Boonmlee Lee, 21, and Meng Lee, 19 -- were arrested late Saturday and charged with five counts of shooting with intent to kill and possession of a firearm during commission of a felony.
Hmong community leaders met Sunday to discuss "what happened and how to prevent it from happening again," said Stephen Vang, public liaison with the Hmong American Association of Oklahoma.
"At first the community was shocked and in disbelief that this happened in an open, public gathering," Vang said. "We ask that the Hmong community and the mainstream community not be panicked. Our community leaders will work hard to contain the violence, and the police and the authorities are working on their side."
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