The US dollar fell against most currencies on Tuesday, after the release of weak economic data in the US.
The data showed that the US manufacturing PMI fell to 57.5 points in November from 59.3 points in October, missing analysts' forecasts of 57.9 points.
The administration of the outgoing US President Donald Trump announced that it would start distributing doses of two Covid-19 vaccines ahead of the Christmas holidays this month.
Moderna announced on Monday that its vaccine was 100% effective at preventing severe COVID-19 in the final analysis of the third and final stage of clinical trials, adding that it is also suitable for all age groups.
The dollar index fell against a basket of major currencies by 0.6% to 91.3 points as of 19:03 GMT, after hitting a high of 91.9 points and a low of 91.2 points.