European Central Bank chief Mario Draghi says the ECB will continue its economic stimulus program until inflation picks up and companies and consumers gain confidence.

Draghi says the program, involving 1.1 trillion euros ($1.3 trillion) in bond purchases, "will stay in place as long as needed for its objective to be fully achieved." He was speaking at the International Monetary Fund.

Earlier this week, the 19 countries that use the euro currency reported the fastest economic growth in nearly two years.