Toshiba investigated by Japan's securities watchdog: source

TOKYO (Reuters) - Japan's securities watchdog is investigating Toshiba Corp's accounting practices for the last business year to see if it properly handled the losses incurred by its U.S. nuclear unit Westinghouse, a source familiar with the matter told Reuters.

The Securities and Exchange Surveillance Commission is examining the process involved in creating the financial report for the 2016/17 business year, said the source, who was not authorised to speak to the media and declined to be identified.

A Toshiba spokesman declined to comment.

(Reporting by Takahiko Wada; Writing by Kaori Kaneko; Editing by Edwina Gibbs)