Gas from flatulent cows explodes German farm shed

Methane gas from 90 flatulent cows has exploded a German farm shed, damaging the roof and injuring one of the animals, police said.

High levels of the gas had built up in the structure in the central German town of Rasdorf, then "a static electric charge caused the gas to explode with flashes of flames," the force said in a statement.

One cow was treated for burns, a police spokesman added.