A man has blown himself up at a Ukrainian border post, killing himself and seriously injuring two guards.
According to Ukraine's border service, guards stopped a minibus with Moldovan number plates as it crossed into Ukraine from Russia at the Bachevsk border point early on October 4.
The minibus was carrying four passengers, but guards found a fifth passenger hidden inside.
The man showed border guards a Russian passport that was not his.
An adviser to the head of the Ukrainian border guards, Sergiy Astakhov, said the man detonated explosives attached to his body as he was being interviewed.
The motive for the incident is not clear.
The border-crossing point has been closed while an investigation is under way.
Other border crossings have been placed on high alert.
Based on reporting by AFP and Interfax