Paityn, 9, Evelyn, 8, and Olivia, 5, were found suffocated at a remote Washington campsite. Their father has been charged with murder and kidnapping

"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," the Chelan County Sheriff's Department wrote in a statement.

WENATCHEE - Through trees, trails, rocks and mountains, agencies in and out of Chelan County have descended on the area surrounding Blewett Pass in the Cascade Mountains as they try to capture a man suspected of suffocating his three children in a remote campground.

(CNN) — As the search for the father accused of killing his three young daughters approaches its third week, authorities in Washington state are embracing a “change in tactics,” Chelan County Sheriff Mike Morrison said in a Wednesday evening news conference.

The search for Travis Decker, accused of killing his three daughters, continues as the Washington National Guard has been deployed.

The heartbroken mum of three young girls who were found dead near an abandoned camping site after a trip with their dad, Travis Decker, 32, has spoken - a manhunt was launched to find the father

As the manhunt continues for Travis Decker, suspected in the murders of his three young daughters more than a week ago, the Chelan County Coroner has