The regional airline flight in Alaska that crashed, killing all 10 people onboard, was overweight before it took off, according to a preliminary report released Wednesday by the National Transportation Safety Board.

The proximity warning system aboard the Delta Air Lines flight that crashed at Pearson airport last month sent an alert indicating a high rate of descent less than three seconds before the plane touched down,

A preliminary report into a plane crash at Toronto's Pearson airport last month says the aircraft's alert system indicated a high rate of descent less than three seconds before touchdown.