HALIFAX, Nova Scotia (AP) — An Air Canada plane made an "abrupt" landing and left the runway at the Halifax airport in bad weather, and the airline said early Sunday that 22 people were taken to a hospital for observation and treatment of minor injuries.

The airline said all passengers with Flight AC624 from Toronto left the plane and went to the terminal.

The airline said a preliminary count indicated 132 passengers and five crew members. Flight tracking service FlightAware showed that the plane is an AirbusA320, which has typical seating for 150.

Power at the airport was briefly knocked out, but Nova Scotia Power said they had since restored it. The cause of the outage was not yet clear.

The Halifax region is currently under a snowfall warning, with an Environment Canada alert saying, "Visibility may be suddenly reduced at times in heavy snow."

Another flight tracking site, Flightradar24, listed several cancelled flights at the airport Sunday morning.