Denmark summoned the US ambassador in Copenhagen to discuss alleged espionage against Greenland amid a growing push to gain control of the Arctic island.

Denmark has called in the US ambassador over a report that Washington is stepping up its espionage of politicians in Greenland and Copenhagen.

Denmark on Thursday summoned the top U.S. diplomat in the country for an explanation following a Wall Street Journal report about the United States stepping up intelligence gathering on Greenland, a semi-autonomous Danish territory coveted by U.