London’s FTSE 100 index failed to open at the start of the European trading on Friday.
The London Stock Exchange (LSE) is investigating a potential trading services issue, according to an official statement.
Futures had indicated a higher open for the FTSE on Friday.
FTSE 100, U.K.’s blue-chip index, hit a six-month low on Thursday as an escalating trade war between the United States and China and growing concerns about the world economy saw global stocks in sell-off mode.
The index is down more than 6.7 percent over a 30-day period but is still up more than 5 percent since the start of the year.
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