In initial deals, London's benchmark FTSE 100 index of major blue-chip firms shed almost 0.7 per cent to 7,351.82 points.
In the eurozone, Frankfurt's DAX 30 lost about 0.8 per cent to 12,031.12 points and the CAC 40 in Paris sank nearly 0.9 per cent to 5,035.38 points compared with the closing levels on Monday.
"Investors rushed to the safe haven assets today after North Korea fired a ballistic missile over Japan," said analyst Ipek Ozkardeskaya at London Capital Group.
The rocket test is the latest in a series of recent provocations, testing US President Donald Trump, his South Korean counterpart Moon Jae-In and Japanese Prime Minister Shinzo Abe, raising fresh fears of a conflict.
Disclaimer: No Business Standard Journalist was involved in creation of this content