A court in southern Poland has convicted five men and one woman over a 2006 roof collapse at an exhibition hall that killed 65 and injured a further 140 people during an international pigeon fair.

A court in Katowice ordered 10 years in prison for a Pole, identified as Jacek J., who drew up construction plans for the hall without having proper qualifications. Others convicted included members of the fair's board, New Zealander Bruce R. and Pole Ryszard Z., who were given three and four years respectively.

The defendants remain free pending appeal.

The flat roof collapsed under the weight of uncleared snow into the crowded hall in January 2006 during an international fair of homing pigeons in Katowice. The victims came from Poland and six other countries.