Texas officials have revised the number of people missing in the catastrophic floods in Kerr County, Texas, from 97 people down to three on Saturday.

“Through extensive follow-up work among state and local agencies, many individuals who were initially reported as missing have been verified as safe and removed from the list,” the City of Kerrville said in a news release.

The historic flooding event killed at least 135 people in the state over the July 4 weekend and kicked off a massive search through mud and debris for those unaccounted for along the Guadalupe River in central Texas.

Authorities said that following the floods, hundreds were reported missing and that through efforts with the Texas Department of Public Safety, that number has now been revised down.

“While the updated figure offers some relief, searchers remain focused on reuniting the three individuals who are still unaccounted for with their families,” Kerrville Police Department public information officer Jonathan Lamb said in a news release Sunday.

Texas Gov. Greg Abbott had said Monday that the flooding left 101 people missing statewide, including 97 people in Kerr County. Authorities would continue to search for those missing and identify the victims, Abbott said, advising it can take a few days and suggesting that number could be revised down.

Officials said Saturday recovery operations will continue throughout the Guadalupe River watershed for those still missing.

“We are profoundly grateful to the more than 1,000 local, state, and federal authorities who have worked tirelessly in the wake of the devastating flood that struck our community,” Kerrville City Manager Dalton Rice said. “Thanks to their extraordinary efforts, the number of individuals previously listed as missing has dropped from over 160 to three.”

One person remains missing about 150 miles away in Travis County and another is missing in Burnet County, officials told CNN Saturday.

The updated count in Kerr County comes about two weeks after torrential downpours in the overnight hours of July 4 transformed the Guadalupe River into a roaring flood, sweeping away homes, vehicles, roads and trees. At least 107 people in Kerr County alone died, including 37 children, and at least 161 others in the county were initially reported missing.

At a Kerr County commissioners meeting Monday, Sheriff Larry Leitha said his office’s search and recovery efforts will “go strong for another month or two,” and could last up to six months. The sheriff’s office said 2,200 people from multiple agencies have been deployed to assist in the recovery efforts.

The search included 60 miles of river, murky waters, thick mud and seemingly insurmountable piles of debris. A small army of searchers from across the US and even Mexico have worked through perilous terrain – aided by helicopters, drones and boats, as well as dogs and mules.