REGINA -- There are to be no open fires in parks and many areas across Saskatchewan due to hot, dry conditions.

Environment Canada says the weather isn't expected to change in the next four to five days, so the province has issued a ban on Crown-owned land.

That includes most provincial parks -- especially in the north where conditions are the most extreme.

Steve Roberts in wildfire management says no communities are threatened, although some could be told to evacuate if temperatures don't cool down.

The province says all the fires currently burning were man-made and could have been prevented.

Roberts says the conditions are the worst he's seen in years.

"We've had periods of high hazard before, but not continued with a long projection, so we have not called a fire ban of this magnitude in the last five years," he said.

There were almost two dozen fires burning in the province Friday.