A mysterious mass grave with 20 medieval skeletons has been excavated by city workers exploring an old moat.
The remains are said to belong to men between the ages of 15 and 30, all who lived between the late Middle Ages and the 18th century.
The crew, excavating in Vianen, Netherlands, also found rusty nails nearby that suggest the bodies were once in a coffin.
Archaeologists now believe that more remains may have been hiding in the area, which was just outside the grounds of Batestein Castle. MailOnline reports.
Initially, workers thought there were only nine rotten bodies when they excavated them Friday.
But as they further explored the gruesome grave, they reportedly found 11 more, all stacked on top of each other.
The team expected to find artifacts such as buttons or jewelry, but only saw old nails among the remains – pointing to the idea that this may have been a mass murder.
It also raised suspicion that the bones were found outside the 14th-century castle, which was once plagued with hardship.
In 1567 the area was overrun by the Spanish army – and a century later the castle was partially destroyed by fireworks and never rebuilt.
The only remaining parts of the castle are a decorative gate and some connecting walls.
The mass grave has raised many questions, with an archaeologist telling Alkhaleej Today, “Why are these people lying here? What made them die? Could it be related to historical events? “
The bones are now being collected and will be taken to a specialist for deeper analysis.
“There is no doubt that there is more. The size is not yet known. That is why an even larger area is being investigated, ”said another expert.