The Japanese yen rises to a two-week high against the dollar after Japan's finance minister delivered a fresh warning about potential interventions to support the currency. Satsuki Katayama said Friday that Japan stands ready to take "appropriate action at any time as needed." The comments fuel speculation that Japanese authorities could intervene as soon as Friday when there is reduced liquidity due to the U.S. public holiday. The yen is also supported by a weaker dollar after Thursday's softer-than-expected U.S. jobs data reduced rate rise expectations. The dollar falls to as low as 160.51 yen.(renae.dyer@wsj.com)