A build up of methane gas from a herd of flatulent cows has caused an explosion on a farm in the German town of Rasdorf.

The blast, caused by a concentration of gas emitted by a group of 90 cows, damaged the roof of their cow shed – leaving one of the animals injured, according to a report from the UK’s Daily Mirror.

Police said in a statement that “a static electrical charged caused the gas to explode with flashes of flames.”

One cow was treated for burns. For the record, just one of the animals gives off enough methane gas in a day to fill 400 litre bottles.

Find the original report here.