The United States Treasury intervened in yen exchange rates on Friday. This action supported the Japanese currency through outright purchases by the Treasury. The Federal Reserve Bank of New York conducted a sale of euros. This sale was done to buy yen on behalf of the Treasury. These details were reported by the Financial Times citing familiar sources.

July 30 : The dollar sank against the Japanese yen on Thursday with traders alert to the possibility of intervention from Japan to prop up its stubbornly weak currency. The dollar…

NEW YORK, July 30 : The Japanese yen surged on Thursday, in a move analysts said bore the hallmarks of official intervention by Tokyo to prop up a currency that has slumped to…

By Jessica Fleetham and Megumi Fujikawa

Coordinated actions seen as joint effort to curb yen weakness