A 34-metre-long train has broken the world record for the longest structure to be made entirely out of chocolate.

Constructed using 1,285 kg of the finest Belgian chocolate and packing an impressive 6.5 million calories, the intricately detailed model was created by master chocolatier Andrew Farrugia from Malta, the Daily Mail reported.

The creation was unveiled for the launch of the "Brussels Chocolate Week" at the Brussels South Station.

Representatives from the "Guinness Book of Records" were at the event to check the measurements and register it as an official record.