The two pilots who died when a float plane they were flying in crashed into a Yellowknife street have been identified, and the airline they flew for has grounded its flights.

Pilot Trevor Jonasson, 36, and co-pilot Nicole Stacey, 26, were killed shortly after 1 p.m. Thursday when their Twin Otter plane crashed, clipping power lines before slamming into a vacant lot between two Yellowknife buildings. Seven passengers were injured, two seriously enough that they were flown to Edmonton for treatment.

Investigators with the Transportation Safety Board are on their way to Yellowknife to look into what caused the crash. The plane was chartered by Avalon Rare Metals and was carrying three of the company's employees, as well as a photographer from Up Here magazine. The plane was returning from an exploration site near Thor Lake when it went down not far from Yellowknife Bay, where float planes take off and land.

No one on street level was seriously hurt, but some bystanders were struck with debris.

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