Rescue Rescuing teams were also dispatched Sending to assist Assistance local volunteers in finding Know survivors trapped under the debris .

Rescue trains began Process_start arriving Arriving the day of the explosion from across Nova Scotia and New Brunswick while other trains from central Canada and the northeastern United States were impeded Hindering by blizzards .

Rescue efforts were complicated Hindering by low temperatures of -30 °C , raising concerns that victims trapped in the destroyed building might freeze before being reached by rescuers .