Western officials say two incendiary devices were part of a covert Russian operation targeting cargo or passenger aircraft flying to the U.S. and Canada.

Western security officials suspect Russia was behind a plot to put incendiary devices in packages on cargo planes bound for North America, including one that caught fire at a courier hub in Germany and another that ignited in a warehouse in England.

The government of Canada has expressed concerns directly to Russia following reports that Moscow was behind a plot to put incendiary devices on planes flying to North America.The Wall Street Journal reported Monday that Western security officials believe two incendiary devices were part of a Russian operation that aimed to start fires aboard cargo or passenger planes flying to the U.