The US dollar fell 1 percent against the euro, also the biggest weekly decline since Sept. 20, to US$1.3687 and touched US$1.3704, the weakest since Feb. 1. The US dollar fell 0.9 percent to ￥97.72. The euro gained 0.2 percent to ￥133.79 in its second weekly advance.
The British pound rose the most in five weeks versus the US dollar, and strengthened for the first time in three weeks against the euro as data showed UK retail sales increased more than analysts forecast last month and jobless claims fell last month by the most in 16 years.
The pound rose 1.45 percent in the week to US$1.6188 as of 4:53pm in London on Friday, the biggest gain since the five-day period ended Sept. 13. Sterling gained 0.4 percent in the week to ￡0.8460 per euro.