LONDON, May 30 (Reuters) - The Japanese yen strengthened on Tuesday after an announcement of an emergency meeting of senior Japanese officials including from the central bank.

The yen was last at 140.43 per dollar, flat on the day, having traded as soft as 140.93 before the announcement.

Senior officials from the Ministry of Finance, Bank of Japan and Financial Services Agency will meet from 0830 GMT (1730 Tokyo) to discuss international financial markets, the finance ministry said. (Reporting by Alun John; editing by Dhara Ranasinghe)