REXBURG, Idaho — Police in eastern Idaho searched the Rexburg home of Chad Daybell Friday morning.

It's the home he shared with his wife Tammy, who is now deceased.

Daybell and his current wife, Lori Vallow, have made headlines in recent weeks, as law enforcement officials say they are refusing to cooperate in the case of Lori's missing kids -- 7-year-old Joshua Vallow and 17-year-old Tylee Ryan.

They are considered persons of interest.

Neither Joshua or Tylee have been seen or heard from since September.

Fremont County Sheriff Len Humphries told EastIdahoNews.com that the search warrant is related to both the missing children and Tammy's death, which was recently labeled as suspicious.

No word on what investigators may have found in the home, if anything.

The FBI confirmed they are involved in the investigation and local authorities with the search.

RELATED: No progress despite hundreds of tips on missing Idaho kids

RELATED: 'Investigations need facts, not more rumors': Investigators continue the search for missing Idaho kids

Watch more of The Search for Lori Vallow's Missing Idaho Kids:

See all of the latest coverage of the missing Rexburg kids in our YouTube playlist:

RELATED: Police: Two missing Idaho kids last seen in September

RELATED: Court documents detail what will happen to missing Rexburg children if or when they are found alive

RELATED: 'They don't deserve this:' As deadline looms, location of missing Rexburg kids remains a mystery