First responders tending to victims of the Amtrak train derailment on Tuesday night in Philadelphia. Photo: Twitter.

CNN – As day broke in Philadelphia on Wednesday, rescue workers were still searching inside the mangled wreckage of an Amtrak train that derailed the night before, killing at least six people and sending another 146 to various hospitals.

Temple University Hospital medical director Herb Cushing said Wednesday morning that 25 passengers were still at Temple — the closest trauma center to the crash site — eight of them in critical condition.

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