New activity has been reported in the ongoing search for Patty Vaughan, who was last seen in 1996.
Several law enforcement agencies were back out at her former husband's property on Monday afternoon and Tuesday morning.
Investigators with the Bexar County Sheriff's Office and the FBI said that they were asked to be there by Wilson County sheriff's officials and the Texas Rangers, but just as observers.
A Wilson County sheriff's official said an anonymous tip told Texas Rangers that someone had been digging in the are.
However, agents found no evidence of that and did not find Patty Vaughan's body.
"I'm sure it's very hard on the family because its been a long time ... and, you know, we have to try to do whatever we can to help them," Wilson County Sheriff Joe Tackitt.
Vaughan's husband, JR Vaughan, has been a person of interest in her disappearance.
There have been searches on properties all over South Texas over the years and several different agencies have investigated her disappearance.