Archaeologists working in Turkey claim they have found the cross of Jesus Christ. But is it the same cross used to crucify Jesus?

The archaeologists found a stone chest during excavation at a 1,350-year-old church, USA Today reports.  The Balatlar Church is located inTurkey's Sinop Province, and the archaeologists showed the artifacts to reporters today. The chest had a number of relics inside believed to be associated with the crucifixion, a historian at Turkey's Mimar Sinan University of Fine Arts told the Hurriyet Daily News.

"We have found a holy thing in a chest. It is a piece of a cross, and we think it was [part of the cross on which Jesus was crucified]. This stone chest is very important to us. It has a history and is the most important artifact we have unearthed so far," lead archaeologist Gülgün Körolu said.

The Christian Post reports that the stone chest belonged to a "holy person."

The chest is currently undergoing lab tests, NBC News reports.

The Inquisitr reports that many critics doubt the authenticity of this cross and similarly-reported ones. John Calvin, a theologian from the 16th century, said that so many pieces of Jesus' cross have been found over the years that "if all the pieces... were collected together, they would make a big ship-load."

NBC News reports that according to legend, St. Helena - the mother of Emperor Constantine - found the cross in Jerusalem and distributed pieces of the wood to church leaders in Jerusalem, Rome and Constantinople (present-day Istanbul in Turkey).

Ruins of an ancient Roman bath and more than 1,000 human skeletons have also been found in Balatlar Church, built in 660, since Körolu's team started working in 2009, The Huffington Post reports.