In October 2019 Nokia slashed its 2019 and 2020 profit outlook and halted dividend payouts, sending its shares more than 20% lower.

"The Financial Supervisory Authority sees that Nokia Plc did not fail in their duty to publish inside information as soon as possible," it said in a statement, adding that its review of the matter showed no reason for further action.

(Reporting by Anne Kauranen; Editing by David Goodman)