A Dutchman who was among exhibitors at the Pigeon 2006 show in Chorzow told AFP that his father, Dick, had died in the disaster.

"He is dead," Frederic Basch said.

"Before I was able to escape, I saw his body. I have also had confirmation from the consulate."

Basch and his father had travelled to Chorzow from Deil in the Netherlands, and had a stand exhibiting pigeon food at the show. They were among some 20 Dutch racing pigeon enthusiasts at the exhibition.

"Our Polish representative died with my father," Basch told AFP.

Renata Kasprzyk,the deputy police commander at the scene in Chorzow, said nationals of Germany, Belgium, the Czech Republic and Slovakia were among the dead.

She said the bodies of six victims still had to be identified.

The Czech news agency CTK cited the country's consul general Josep Byrtus as saying Sunday two Czech nationals had died when the roof of the exhibition hall caved in on Saturday. It gave no further details.

Slovakia reported that two of its nationals were missing.