Eighty percent containment was reported on the deadly Yarnell Hill Fire Friday, and some evacuated residents were allowed to return to their homes.

The Incident Information System website reported that crews totaling 550 firefighters were continuing to build fire lines.

The fire's threat in Peeples Valley south of Yarnell went down, and thus some residents there were allowed to return, fire officials announced Thursday evening. Yarnell residents were still being kept away, and officials said it could be Sunday or evening Monday before they are allowed back in.

In Yarnell, officials said, 129 homes and other structures were destroyed.

On Sunday, a sudden shift in wind drove the fire back on a hotshot crew that had been working the fire lines. Nineteen crew members were killed. All were members of the Granite Mountain Hotshots and of the Prescott Fire Department.

The White House said Vice President Joe Biden will travel to Prescott to attend a memorial service for the hotshots on Tuesday, The Associated Press reported.

Electric power and propane company crews were begin restoring service Friday and inspect gas tanks for leaks or other damage.