A German hand grenade from World War One was found in a chip factory in Hong Kong over the weekend, I see.

The hand grenade had been discharged, but failed to detonate.

It was found in a delivery of spuds from France, which were due to be made into crisps in Hong Kong.

In a tweet, the Hong Kong Police said that they safely detonated the explosive in a drain.

Good to see crisp factory workers had their eyes peeled for a hand grenade masquerading as a humble spud.