The footage shows the Stone of Anointing in Jerusalem – the site which Christians believe is where Jesus’ body was prepared for burial.
The shock video shows a red substance sitting on top of the object.
Nicola Kanaan, a resident in Galilee, Israel caught the moment and said it was blood “leaking” from the slab.
It happened inside Church of the Holy Sepulchre, one of the holiest sites in Christianity, which is believed to contain the site where Jesus was crucified and his tomb.
Thousands of viewers have commented on the footage since it circulated last week.