The U.S. dollar momentarily plunged to the 151 yen level for the first time in about three months on Wednesday on yen buying after the Bank of Japan decided to raise its policy interest rate. The dollar fell to the 151 yen level, according to a major Japanese bank, before recovering quickly to the 153 yen range. It had plunged by around 2 yen to the upper 152 yen range in New York overnight after news reports that the BOJ was considering an additional rate hike. At 1 p.m., the dollar fetched 153.63-68 yen compared with 152.72-82 yen in New York and 154.89-91 yen in Tokyo at 5 p.m. Tuesday.