It looks like the search will continue to find the body of Jimmy Hoffa.

Authorities in Michigan drilled under a Detroit home and took two soil samples after receiving a tip that a body was buried under a concrete slab around the time that Hoffa vanished.

Police Chief James Berlin said that the investigation started after a "credible" tip was received. The information led to a home in Roseville, Michigan.

But it turns out it wasn't the body.

"The samples submitted for examination showed no signs of human decomposition," Chief Berlin said Tuesday.

Detection using radar found a strange anomaly underneath the concrete slab. The authorities have stated that the samples show no "discernible remains" such as body parts.

The samples were taken to a lab at Michigan State University and the results were negative for the hopes of finding Hoffa.

The former head of the Teamsters was last seen in 1975 before disappearing without a trace- making him one of the most famous missing people in America at the age of 62.

Hoffa had made a name for himself as a powerful union leader. He was sent to prison in 1967 and subsequently pardoned by then President Nixon four years later on the term that he didn't try and return to the union until at least 1980. He was last seen in Bloomfield Township, Michigan, at the Machus Red Fox restaurant where he supposedly met with a Detroit mobster and a Teamster official.

The FBI has long thought the disappearance could have had something to do with Hoffa trying to return to power as head of the Teamsters.

Hoffa's son, James P. Hoffa, has since followed in his father's footsteps. He is currently the president of the Teamsters.