By Thomas Escritt and Stine Jacobsen BERLIN/COPENHAGEN (Reuters) -The Danish authorities on Monday asked ships to steer clear of a five nautical mile radius off the island of Bornholm after a gas leak overnight from the defunct Russian-owned Nord Stream 2 pipeline drained into the Baltic Sea. The German government said it was in contact with the Danish authorities and working with local law enforcement to find out what caused pressure in the pipeline to plummet suddenly. Denmark’s energy ministry declined to comment. The pipeline has been one of the flashpoints in an escalating energy war betw…