A tornado warning was briefly issued for parts of southern Ontario on Saturday, but has since been lifted.

Environment Canada issued the warning around 12:20 p.m., saying meteorologists were tracking a severe thunderstorm that was possibly producing a tornado.

The thunderstorm was located just east of Milton, Ont., at the time and was moving southeast at 40 km/h. The possible path included the Milton, Mississauga, and Oakville areas of Ontario.

“This is a very dangerous and potentially life-threatening situation,” the warning read.

“Take cover immediately in a basement, interior room, or a sturdy shelter when threatening weather approaches. If no shelter is available, lie in a low spot and protect your head from flying debris.”

The warnings advised people to move away from the path of the tornado to escape.

“Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches,” it added.