June 4 (UPI) -- A Washington state manhunt continued Wednesday for Travis Decker, a military veteran and suspect in the murders of his three daughters.

Police warned that Decker could be a " significant risk ." The girls were 9, 8 and 5.

Paityn, Evelyn and Olivia Decker were found dead Monday relatively close to Decker's truck at a campground about 130 miles east of Seattle.

The Chelan County Sheriff's Office said in a statement, "A joint operation including regional, state, and federal law enforcement agencies continues in Chelan County in search of Travis Decker. Travis is suspected of kidnapping and murdering his three young daughters this past weekend."

"We will not rest until we have located him," Chelan County Sheriff Mike Morrison said during a press conference. "He can be

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