Over one million tickets have already been sold for next year's World Cup, Fifa said on Thursday in its first update on numbers since the official start of sales began earlier this month.

The highest demand, as would be expected, was from buyers in the US, Canada and Mexico – the three nations that will play host to the tournament.

Fifa said people from 212 different countries and territories have already purchased their tickets, even though only 28 of the 48 spots in the field have been filled.

Rounding out the top-10 countries in terms of tickets purchased already: England, Germany, Brazil, Spain, Colombia, Argentina and France, in order, Fifa said.

The tournament runs from June 11 through July 19.

"As national teams across the globe compete for a place at the historic Fifa World Cup 26, I am thrilled so many football-loving fans also want to be part of this watershed event in North America,” Fifa President Gianni Infantino said in a release.

He added, “It's an incredible response, and a wonderful sign that the biggest, most inclusive Fifa World Cup in history is capturing the imagination of supporters everywhere.”

Fifa did not reveal any specific figures about how many tickets have been sold for certain matches, or offer any breakdowns by host site. (AP)