Ukraine has said it detained a priest, who used missions to the country's conflict-ridden east to traffic arms including a grenade launcher and hand grenades.
The priest was arrested several months ago in northwestern Ukraine, but his detention was only made public today after further police investigations, the Ukraine security services (SBU) said.
An SBU spokeswoman said: "It is a very delicate topic".
Beginning in 2015, the priest carried out repeated "preaching missions" to eastern Ukraine, investigators said, where government forces have been fighting separatists backed by Russia.
"He returned with dangerous trophies, which he sold to friends," the SBU said in a statement.
Officials said several instances were recorded of the priest selling weaponry, including a rocket-propelled grenade launcher, seven grenades and 800 grams of dynamite.
The unnamed man, who it is reported was previously convicted of arms trafficking, faces up to seven years in prison.
The case highlights the problem of illegal weapon trafficking which has escalated since 2014 when fighting broke out between the Ukraine government and separatists in the eastern Donetsk and Lugansk regions.
Russia annexed the Crimean peninsula from Ukraine in 2014, a move which was met with harsh economic sanctions by western countries.
More than 13,000 people have been killed in fighting since.
