U.S. dollar banknotes.

The dollar extended its dramatic fall on Friday, putting it on course for its biggest monthly drop in a decade as investors fretted that a rebound in the U.S. economy would be derailed by the struggle to stem the coronavirus epidemic.

Weakness in the U.S. currency propelled the euro higher, with the single currency touching $1.19, its strongest since May 2018, and enjoying its biggest monthly gain since September 2010.