A court in southern Poland has handed a 13-year prison term to a chemist found guilty of having plotted a bomb attack on parliament and other buildings in 2012.

The man, identified as Brunon Kwiecien, a university teacher in Krakow, was arrested in 2012 in a much publicized case that the prosecutors said was a successful foiling of a "terrorist" attack. The case involved undercover security officers pretending interest in Kwiecien's scheme.

On Monday a court in Krakow found Kwiecien guilty of preparing an attack on parliament, of trying to induce two students to carry out an attack and of illegal weapons possession.