Search continues for missing Ky. mother of five

NELSON COUNTY, Ky. -- Officials, volunteers, and family are continuing the search for a missing Kentucky mother of five who vanished more than a week ago.

Crystal Rogers, 35, was last seen by her boyfriend July 3 at their home in Nelson County, reports CBS affiliate WLKY. Her unlocked maroon Chevy Impala was later found abandoned on a highway, with a flat tire and her keys, purse, and phone inside, reports the station.

More than 100 people reportedly volunteered to help with the search efforts over the weekend.

"We're searching every road, every ditch line, wells, sink holes on properties, we're going after them," Rogers' great uncle Sam Johnson told the station.

On Friday, police served a search warrant at a farm owned by family of Rogers' live-in boyfriend, Brooks Houck. According to multiple news outlets, Houck told investigators that he stayed up late the night Rogers vanished, and when he woke up, she was gone.

Rogers' sister Brooke Ballard told ABC News that she questions Houck's story.

Houck, who is reportedly the father of one of Rogers' five children, denied any involvement in the disappearance to HLN's Nancy Grace.

There's been no suspects or persons of interest named in the case.

Rogers' family is offering a $71,000 reward for information about the disappearance.