WASHINGTON - At least 10 people were hospitalized after a mass shooting at a campground near the Arcadia Lake in the US state of Oklahoma on Sunday night, local police said.

"I can confirm that we have transported 10 to area metro hospitals in various conditions," Edmond city police spokesperson Emily Ward was quoted as saying by the KWTV news. She believed that "there will be more victim numbers coming in."

According to her, multiple shots were fired at a party of young people near the lake, a popular place for picnicking, camping, fishing, and water sports.

The lake is about 21 km north of Oklahoma City in the suburb of Edmond, part of the Oklahoma City metropolitan area.