St. Catherine of Sienna Catholic church in Petersburg is missing a few items after a burglary on Christmas Eve.

The burglar left with a star decoration from the church’s window, some paper products and an important part of the Catholic Mass. It’s a small vessel called a Luna, used for holding the Holy Eucharist, what Catholics believe is the body of Christ.

Father Steve Gallagher says that the Luna was kept locked up and the person who stole it knew where the key was stored. The church itself is left open for someone who needs a place to sleep. The items were discovered missing before a service on Saturday afternoon.

The priest says the thief also left behind a few tools, a hammer and spatula. Petersburg Police are investigating. The church also suffered a string of break-ins in 2008 and 2009.