NEW : the National Transportation Safety Board officials should be on site by night weeks , spokesman says . 67 train derailed then hit a train going the other way , spokeswoman says . Two hospitals have treated 67 injured people , spokespeople say ; One are critical . One of those was in serious condition and in intensive care , while the others mostly had minor injuries like `` you might get in a car accident . '' A mayor says it may take weeks to get train service moving again on that key corridor .
NEW : the National Transportation Safety Board officials should be on site by night weeks , spokesman says . 67 train derailed then hit a train going the other way , spokeswoman says . Two hospitals have treated 67 injured people , spokespeople say ; One are critical . A mayor says it may take weeks to get train service moving again on that key corridor .