A rehabilitation program at a high security jail in Bosnia encouraging prisoners to breed pigeons was one of those projects that seemed like a good idea at the time. However, one of the pigeons is now in custody and behind bars, accused of smuggling drugs.

Wardens at Zenica prison grew suspicious when four prisoners became visibly intoxicated shortly after the pigeon was spotted landing on a window-ledge. The wardens' suspicions were confirmed when the bird's owner and three other inmates later tested positive for heroin, which it is thought had been carried in by the pigeon in tiny bags attached to its legs.

The pigeon will remain behind bars until prison authorities decide what to do with it.

Ananova