A Canadian official said on Wednesday that security for the summits to be held in Ontario next month is expensive because of the number of heads of state involved.

The Canadian Broadcasting Corp. has reported that the Group of Eight and Group of 20 are holding back-to-back meetings. The government now puts the price tag for security at $890 million and says it could go up.

The two summits are going to cost more than providing security for the Winter Olympics in Vancouver because the problem is different, Public Safety Minister Vic Toews has said.

Toews further said, "Granted there were some heads of nations at the Olympics, but nowhere in the configuration or the numbers that are going to be here. I don't think you can say, 'Well, because it's seven days instead of 14 days, it should be half the price.' It simply doesn't work that way."

While, the G20 meeting will be in Toronto, the smaller G8 meeting is being held in Huntsville, Ontario. (With Inputs from Agencies)