London Stock Exchange Group's Workspace news and data platform suffered an outage today that affected user access worldwide, causing disruption across financial markets.
In a service announcement to clients, the company said it was experiencing a third-party global technical issue that was impacting some services, although securities trading on the London Stock Exchange was not affected.
This came as a major IT outage impacted companies across the globe.
The LSEG outage also meant that company updates were not being published to markets through its Regulatory News Service, while signs of disruption in one of the world's busiest financial centres emerged as London trade got underway.
Reuters contacted several of the world's biggest banks to check the status of their trading activities, including JPMorgan, HSBC, Goldman Sachs and Barclays but none of the lenders had an immediate comment.
One London-based trader said several multilateral trading facilities were being affected by the outage, leaving some clients unable to trade.
"We are having the mother of all global market outages," the trader added.
During Asian trading hours, LSEG said its news services were experiencing a global technical issue that prevented news from being published on its platform.
Separately, LSEG said it was experiencing technical problems publishing its spot and forward prices for currencies earlier this morning.
"This is currently under investigation and we will provide further information as soon as we can," LSEG said in a message to clients seen by Reuters.
London's FTSE 100 opened later than usual this morning. It normally starts business at 8am but did not start trading uptil about 8.20am.
Euro zone indices opened as normal this morning with the Frankfurt DAX, the Paris CAC and Euronext Dublin all seeing losses today.
The Swiss Stock Exchange Group also said today that its systems are operating normally.
