Law enforcement has tracked someone they believe to be Travis Decker - accused of killing his own children - in the Blewett Pass area of Washington state Tuesday evening, the Chelan County Sheriff’s Office said in a news release.

Police have said they believe they are 'closing in' on Travis Decker, the father accused of killing his three young daughters, amid the ongoing manhunt.

As the manhunt for Travis Decker, who has been charged with kidnapping and killing his daughters Paityn, Evelyn and Olivia, police say they are “closing in” on the fugitive.

Chelan County Sheriff’s Office leads the manhunt for Travis Decker, accused of murdering his three daughters at a remote Washington campsite while using survival skills to evade capture.

Exactly what prompted the search to narrow was not made public. The Wenatchee man is accused of killing his three daughters, then vanishing.

The search for Travis Decker, a former U.S. Army soldier accused of killing his three young daughters in Washington state, is in its second week as the Washington National Guard has been deployed to aid law enforcement officers continuing to comb the Cascade Mountains and the Pacific Crest Trail region.

Investigators have been looking for Travis Decker since May 30. Three days later, a sheriff's deputy discovered the bodies of his three young daughters.