An overnight search for a missing 6-year-old boy with autism came to a heartbreaking end Monday morning in Texas, when his body was found in a pond less than a day after he went missing.

According to a Facebook post from the Kaufman County Sheriff’s Office Dalton Robison was last seen alive between 3 and 4 p.m. Sunday. Authorities said the boy’s parents believed he may have wandered off from their home located in the area of FM987 and FM148, near Talty, which is approximately 30 miles outside of Plano.

Dalton had a form of non-verbal autism, authorities said Sunday, adding that he was last seen in a pull-up diaper and possibly wearing black rubber boots.

Over 10 fire departments and eight police agencies were involved in the search that spanned both air and ground, Dallas News reports.

“When something happens we all come together,” Kaufman County Sheriff Bryan Beavers said, according to the media outlet. “We greatly appreciate their help in organizing with us and understanding what we’re going through.”

In a devastating post shared via Facebook Monday, the sheriff’s department announced the tragic ending to the search.

“In the early morning hours of June 25, 2018 the search for Dalton Robison came to a very sad end,” the statement reads. “Searchers located him in a small pond close to his home.”

The statement went on to request privacy for the family, adding that authorities “share a sense of sadness but the light of hope shines in Dalton Robison, a little boy who brought an entire community together.”

Though Beavers told Dallas News that every death is initially investigated as a possible crime, he said officials do not suspect foul play at this time.

[Feature photo: Dalton Robison, Kaufman County Sheriff’s Office]