The European Central Bank (ECB) has kept its main interest rate unchanged at zero for another month.

The decision by the eurozone central bank's 25-member governing council to leave its benchmark borrowing rate on hold had been expected.

It was also decided not to change the ECB's bond-buying stimulus scheme, which was extended last month amid worries about economic growth.

ECB head Mario Draghi said the eurozone economy is stronger, but still fragile.