Britain's blue-chip index dropped on Monday as non-oil stocks took a hit from mounting geopolitical risks and growth concerns after crude prices rose due to the attacks on Saudi Arabian production facilities.
The U.S. dollar recovered from an earlier low caused by an attack on oil fields in Saudi Arabia.
Euro zone governments and central banks are working on a long-term plan to launch a public digital currency that they hope would make redundant projects like Facebook's Libra, which is seen as a risk to financial stability, officials said on Friday.
Wall Street was mixed on Friday, even as trade progress between the U.S. and China boosted investor confidence.
Traders rushed back into U.S. equity funds and trimmed their haven exposure on optimism that global central bankers will shower markets with stimulus and boost economic growth.