LSEG's Eikon and Workspace market data platforms and its interbank foreign exchange matching systems FXT and FXall were not functioning, traders in India and Singapore said.

By 7am GMT, most market sources said systems were back to normal, after being down for between half an hour to 45 minutes.

It was not immediately clear if the London Stock Exchange, also an LSEG business, was affected. However, its website status page said all systems were running normally.

Thomson Reuters the parent company of Reuters News, holds a minority stake in LSEG.

LSEG's flagship Workspace product, which provides financial and real-time data and news, including exclusive access to Reuters News, is the largest division at the data and analytics unit.

(Writng by Vidya Ranganathan; Editing by Jacqueline Wong and Kim Coghill)

By Nimesh Vora and Rae Wee