Environment Canada has issued a heat warning, urging people to be extra cautious.

The ministry said the ban will remain in effect until Oct. 15, or until the order is rescinded, and is being enacted to prevent human-caused wildfires.

As a heatwave continues across southern Ontario, a municipal-wide burn ban will go into effect at midnight Wednesday in the City of Kawartha Lakes.

According to Selwyn Township, fireworks and burning brush are not permitted due to dry conditions and high heat temperatures.

A platoon chief with the London Fire Department said the 'good news' is no one was displaced for the night.

The ban covers all public and private land within the province, unless otherwise specified by a local government.

Ontario residents who live in an area with a restricted fire zone cannot have outdoor fires until further notice, the province announced Thursday.

With temperatures expected to remain in the mid- to high 20s over the next week or more, the township expects that the bans will remain in place through the weekend and into next week.

The B.C. Wildfire Service is banning certain open burns and equipment through the Kamloops Fire Centre to prevent human-caused wildfires.

Edmonton Fire Rescue Services says it lifted the ban Thursday because of the rain and the cooler weather in the area.