Belgian troops are preparing to battle an invasion of hairy caterpillars which can provoke allergic reactions in humans, authorities announced Friday. From Monday, a contingent of 24 soldiers will take part in the fight against the well-organised creepy-crawlies, called procession caterpillars because of their habit of marching in lines. They will join forces with firefighters, civil protection officers and private firms already doing battle against their tiny foes.

For the last two weeks several communes in Limburg have been invaded, with pedestrians, cyclists, outside workers and school children among the victims.

Authorities said that some 20 communes in the northern Flemish Brabant region has also been hit. Such attacks by the hairy greyish creatures have hit Belgium since 1990. "We have seen an extension of their territory compared to last year," said Brabant official Martine Verbeeck.

The caterpillars are common in central and southern Europe but have been tending northwards. Their hairs are an irritant to people and animals alike. With a little hook on their tails, they are easily dispersed by the wind.

People touched by a caterpillar can suffer itches, painful rashes and irritated eyes. The symptoms can last up to two weeks.

Source: Agence France-Presse