LIRR customers should anticipate train cancellations, diversions and delays during this morning's rush hour due to Monday evening's derailment inside one of Amtrak's East River tunnels. Because one of the four tunnels will be unavailable, 35 to 40 trains will be canceled or diverted to Atlantic Terminal, Brooklyn, or Hunterspoint Ave., Queens. At specific transfer stations, MTA New York City Transit will cross-honor fares to the 2, 3, 7 and E subway lines. See Service Status for latest.