European officials say DHL parcel fires were result of test runs for using similar methods to attack transatlantic flights

Parcels that exploded at logistics depots in Europe were part of a test run for a Russian plot to trigger explosions on cargo flights to the United States, according to security officials.Western governments and intelligence agencies in Europe have previously pointed to Moscow as being the source of a series of fires and acts of sabotage in Europe aimed at destabilising allies of Ukraine.