The 37-year search for infamous Teamster boss Jimmy Hoffa continues.
CBS News reported that authorities found "no visible human remains" in a dig conducted Friday morning in Roseville, Mich., in the latest effort to find the body.
CBS Chicago reports that the soil samples will be sent to a forensic anthropologist at Michigan State University where they will be tested for human decomposition. Results are not expected back until Monday.
The dig comes after a man's claim that he saw Hoffa buried in the spot three decades ago.
"Kind of like you I watch TV too and, you know, on TV they always get that evidence cool just like that. So, yeah, we were kinda hoping that when we brought something up there would be something very evident there ... that's not the case," Roseville Police Chief James Berlin told reporters gathered outside the home on Florida Street, according to CBS.
The home reportedly once housed a gambling operation tied to organized crime.
For decades, reports of the location of Hoffa's body has led to various searches.
CNN says the tipster once did business with a man involved in organized crime and was supposed to meet Hoffa the day he disappeared.
Hoffa was last seen July 30, 1975 outside of a restaurant in Oakland County, Mich. CBS Chicago reports that sources say the government has spent hundreds of thousands of dollars in the decades-long hunt for Hoffa including a search beneath a swimming pool and at a Milford horse farm.
Hoffa was declared legally dead in 1982.