Hazmat crews respond to a CSX freight train derailment in Bensalem (Bensalem Township), Pennsylvania, as officials issue protective instructions for nearby residents. Multiple outlets report the derailment occurs near the Neshaminy Falls Train Station and that emergency teams arrive on Tuesday afternoon. Authorities instruct residents in the surrounding area to shelter in place while investigations continue into what the derailed freight cars are carrying. One report also says some homes are evacuated, in addition to the shelter-in-place order. The accounts describe hazmat personnel and other emergency responders moving to the scene to assess potential hazards from the derailment. Officials are investigating the incident and the materials involved, and the public instructions remain in effect pending those determinations. The reports do not provide further details on injuries, the extent of damage, or the cargo beyond that the hazardous materials assessment is underway.