The US dollar surged to new seven-month highs against the euro in Tokyo, with the single currency still under pressure after French voters overwhelmingly rejected the proposed European Union constitution over the weekend, dealers said. In Asian morning trade, the euro tumbled to a seven-month low of 1.2369 against the dollar from around 1.2460 earlier and fell to 133.83 versus the yen, its lowest level since February 8. Against the yen, the dollar was quoted at 108.06 from 108.08 in Sydney and 107.96 yen overnight. But the yen failed to get a boost from the unemployment data released this morning which showed Japan's jobless rate falling to its lowest level in over six years. Traders said the euro will likely remain under pressure, with political uncertainty in the eurozone coinciding with the weak economic outlook. "The eurozone economies are obviously lagging, compared to the US economy, which means the interest rate gap between the two economies may widen further. This is positive for the dollar," said Masashi Hashimoto, foreign exchange market analyst at Bank of Tokyo-Mitsubishi. The European Central Bank policymakers will likely downgrade their 2005 growth outlook on Thursday, according to analysts. Conversely, US GDP for the March quarter released last week showed growth of 3.5 pct against a prior estimate of 3.1 pct. Some say the euro could fall further when Holland votes against the EU constitution, but other traders may have already discounted the Dutch rejection, analysts said. "The significance of rejection by France was limited in nature as this won't jeopardize the monetary union, but it was perhaps exaggerated amid a weak growth picture in the eurozone," said Hashimoto. US economic data due this week may also support the dollar further including the Institute of Supply Management survey of US manufacturers for May out on Wednesday and the non-farm payroll data on Friday, dealers said.