Four rhinoceros heads with eight horns worth almost half a million pounds have been stolen from museum storage in Ireland.
Three masked men broke into a facility in Swords, north Dublin late last night and tied up a security man before committing the robbery.
The heads had been taken off public display more than a year ago and put into storage after a spate of similar thefts from museums and private collections in Europe.
"The horns have probably been taken to supply the illegal trade in powdered horn that is used in traditional medicines in the Far East," a spokesman for the museum said.
"The total amount stolen could have a street value in the region of 500,000 euro (£428,000)."