The body of a 5-year-old Oregon boy missing since the weekend was found Tuesday, the Coos County Sheriff’s Office said in a statement: ABC News reported.

“It is with great sadness that we must announce that Joshua McCoy, who was reported missing, has been found deceased,” the statement said.

Joshua McCoy, who has autism, disappeared from his home in Hauser, according to the sheriff’s office. He and his mother had taken a nap Saturday afternoon, but when his mother woke up around 5:30 p.m. local time, Joshua was missing, according to the sheriff’s office.

The sheriff’s office had activated CORSAR — the California and Oregon Regional Search and Rescue Task Force — to help search for the child.

Drones and K-9 assets were involved in the search. Authorities attempted to contact the boy’s cell phone, but it yielded no “useful information,” the sheriff’s office said. Additionally, a pond on the property was drained but nothing of interest was located. The sheriff’s office also requested assistance from state and federal agencies.

The sheriff said the boy’s body was discovered around 12:30 p.m. local time on Tuesday, about 1.5 miles from his home.

“Nothing is off the table at this time as we consider all possible avenues,” the Coos County Sheriff’s Office said in an update Monday.

Joshua, whose sixth birthday would have been Saturday, was described by authorities as 3 feet 6 inches tall and weighing 50 to 60 pounds, with brown eyes and shoulder-length brown hair.

The investigation is ongoing and no additional information will be released at this time, the sheriff’s office said.