Savannah Guthrie urges public to help find missing mother Nancy in emotional Mother's Day post

In an emotional Instagram post, the "Today" co-host shared a video filled with memories of her mom, alongside a message urging the public to help.

"Mother, daughter, sister, Nonie - we miss you with every breath. We will never stop looking for you. We will never be at peace until we find you," Savannah Guthrie wrote. "We need help. Someone knows something that can make the difference."

She added, "Call 1800CALLFBI. You can be anonymous and the reward remains available. Please keep praying. Bring her home."

"Surrounding you with love on Mother's Day," Feldman added, along with heart and broken heart emojis.

"Today" show lifestyle contributor Jill Martin wrote, "Redefines strongest," with a heart emoji.

In March, Savannah Guthrie spoke publicly about the ordeal, describing her family's pain.

"Someone needs to do the right thing. We are in agony, we are in agony," she told Hoda Kotb at the time.

Fox News Digital's Michael Ruiz, Brian Flood and Hanna Panreck contributed to this report.