The Long Island Railroad says it will be canceling some trains for tonight's rush hour due to an Amtrak derailment. UPDATE: The LIRR canceled 17 trains, the list is in our story, here.
According to the LIRR, the derailment is blocking an East River tunnel and will impact eastbound LIRR trains.
The LIRR is advising passengers to check its website for the latest news on which trains will be canceled.
This is a developing story; check back here for updates, and click here for our live map of LIRR delays and service changes.