TOKYO (AFP) - The Japanese central bank will likely hold an emergency policy meeting early next week to discuss additional monetary easing, a report said Saturday. In light of the market volatility triggered by the yens sharp appreciation, Bank of Japan officials believe swift action is necessary to quell the confusion in financial markets, the Nikkei business daily said. But the BoJ has long kept its key rate at a rock-bottom 0.1 percent and analysts question how much more room it has for further manoeuvre. Some on the policy board are cautious about additional easing, arguing that the central bank should monitor the strong yens impact on the economy a little longer, the Nikkei said citing unnamed sources. If the yens rise and the stock market slide appear to be taking a breather, the policy-setting board may delay a decision until its next regular meeting on September 6-7, the Nikkei said. Prime Minister Naoto Kan said Friday he would outline measures to counter the effects of the yens strength next week, implying possible intervention by saying he would take determined steps when necessary. In a hardened stance from his earlier rhetoric, Kan also increased pressure on the central bank to take further steps to support a slowing economy that remains mired in a damaging cycle of deflation. Kan said he will meet BoJ Governor Masaaki Shirakawa early next week as soon as the central bank chief returns from a trip to the United States. The yen this week hit 15-year highs against the dollar, threatening exporters as it erodes repatriated profits, inflicting damage on Japans key growth driver.