Iowa Man Still Missing 2 Weeks After Pig-Filled Truck Found on Highway: 'We Won’t Give Up,' Says Wife

"I know you would never leave us," said the wife of David Schultz, who was reporting missing on Nov. 21

An Iowa man is still missing two weeks after his abandoned truck was found on a highway carrying the pigs he was set to deliver to a farm just days before Thanksgiving.

The Lake View Police Department and the Sac County Sheriff's Office said David Schultz, 53, was reported missing on Nov. 21. Police said Schultz, of Wall Lake, was last heard from earlier that morning.

The married father of twin boys was slated to deliver the pigs to a farm near Sac City when his semi-trailer truck was found that afternoon on northbound U.S. Highway 71, near its intersection with U.S. Highway 20, the Sioux City Journal reported.

According to the paper, the trailer wasn't pulled over off the side of the road but was not turned off. The pigs were also still inside the truck, according to the Journal, USA Today and the Associated Press.

Related: 1 Fisherman Found Alive, 1 Still Missing 2 Weeks After Vessel Went Missing

The Iowa Division of Criminal Investigations, which is assisting in the investigation, told USA Today that Schultz was still unaccounted for as of Thursday.

The Lake View Police Department, the Sac County Sheriff's Office and the Iowa Division of Criminal Investigations did not immediately respond to PEOPLE's requests for comment.

Related: Va. Mom and 3 Kids Removed from Missing Persons Lists: 'They Appear to Be Safe,' Authorities Say

Along with authorities, volunteers with the nonprofit search and rescue group United Cajun Navy have searched over 100,000 acres for Schultz.

"Unfortunately we did not find the answers we are all hoping and praying for so much," the organization posted on Facebook Sunday. "We feel we may have exhausted any potential search locations in the area."

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.

But David's wife, Sarah, wrote on Facebook that she isn't giving up hope.

Related: Remains of Woman Missing Since Hurricane Ian Found 'Deep Within the Mangroves' of Fort Myers Beach

"We won't give up til you are home with us," she wrote on Thursday. "I know this was not your fault. I know you would never leave us. We love you so much and our love for you will never end."

Anyone with information on his whereabouts is asked to call the Sac County Communications Center at 712-662-7127.

For more People news, make sure to sign up for our newsletter!

Read the original article on People.