Dollar suddenly falls against yen, traders on alert for further intervention

SINGAPORE, Aug 3 (Reuters) - The dollar suddenly dropped against the yen on Monday, reversing gains made earlier in the session, keeping traders on alert for further intervention by authorities to shore up the Japanese currency.

The dollar fell 0.6% against the yen to an intraday low of 156.50 in the Asian morning, after Japan confirmed it had engaged in joint yen-buying intervention with the United States on Friday.

(Reporting by Rae Wee; Editing by Clarence Fernandez)