Asia's crude oil imports from Iran fell in May to the lowest in at least five years after China and India wound down purchases amid U.S. sanctions, while Japan and South Korea halted imports, data from government and trade sources showed on Friday.

Total imports from Asia's top four buyers came to 386,021 barrels per day (bpd) of crude from Iran in May, down 78.5% from a year ago to the lowest monthly level since 2014.