A 728-pound man was buried in a mass grave in Britain Friday — with the help of a mechanical crane, according to The Daily Mail.

The tedious task of lowering 29-year-old Christian Jeffrey's body into the ground took funeral directors four hours, the Mail reported.

Jeffrey has no known relatives.

His coffin was more than double the size of a normal casket, and it took five days to dig his grave, which was 4 feet 8 inches by 7 feet 8 inches.

Jeffrey's cause of death was being investigated, the paper reported. He is believed to have died of natural causes.

Click here for more on this story from The Daily Mail.