European markets were set to open slightly higher on Tuesday morning, as geopolitical tension concerning North Korea kept investors at bay while markets lacked overnight guidance due to a Labor Day holiday in North America.

The FTSE 100 is seen 6 points higher at 7,416; the DAX is expected to open up by around 15 points at 12,121 and the CAC 40 is poised to open 4 points higher at 5,108.

In the aftermath of North Korea’s largest-ever nuclear test on Sunday, the U.S. told the United Nations on Monday that Pyongyang was “begging for war,” before urging the 15-member Security Council to respond with the “strongest possible measures” against the isolated regime.

Ahead of the emergency UN meeting overnight, South Korea had reported that it had seen signs the North was preparing to launch more missiles in the near future.

Meantime, the leaders of Brazil, Russia, India, China and South Africa will continue to discuss economic ties in Xiamen, China on Tuesday. The three-day gathering, which began on Sunday, brings together the five fast-growing economies.

Elsewhere, North American markets were set to re-open on Tuesday after Canadian and American citizens observed Labor Day on Monday.