Mystery surrounds the discovery of a body found Wednesday wrapped in plastic and cardboard inside an abandoned moving truck in Fullerton.

The U-Haul truck containing the body was rented and abandoned in Anaheim, so police in that city have taken over the death investigation, Anaheim police Sgt. Shane Carringer said.

Abandoned or delinquent trucks are normally taken to the company's Fullerton location at Orangethorpe Avenue and State College Boulevard so employees can inventory the belongings, Carringer said. The employees searching the truck came across the body and called Fullerton police about 1 p.m., the sergeant said.

Investigators are deeming it a suspicious death at this point, Carringer said.

"Whether or not it is a homicide is still to be determined,'' he said.

The person's age and gender were not immediately known.

"We don’t have an identifiers that we can give, whether it’s a male or female, race, age, none of that because the body is wrapped up," Carringer said.