April 04, 2016
Amtrak will operate with “residual delays” between Philadelphia and Wilmington on Monday as investigators look into a deadly derailment in Delaware County that occurred on Sunday morning.
"Acela Express, Northeast Regional and other Amtrak services will be subject to some delays in the affected area between Philadelphia and Wilmington," Amtrak notes via its website.
Trains will otherwise be operating as scheduled, which includes "Keystone Service between New York and Harrisburg."
More at Amtrak.com.