Norfolk Southern said it has restored all rail systems after the U.S. railroad operator experienced a hardware-related outage that affected its operations earlier on Monday.

All systems were restored at 0700 pm ET (11 pm GMT), the company said, adding that it expects the impact on its operations to last at least a couple of weeks.

There is no indication that the outage was a cybersecurity incident, Norfolk said, without disclosing further details.

The company said it has been in touch with its customers to work on updated timings for their shipments.

The U.S. Transportation Department's Federal Railroad Administration disclosed earlier this month that it is considering enforcement actions against Norfolk Southern, which has been under heavy fire after one of its freight trains carrying hazardous materials derailed in East Palestine, Ohio, spewing toxins into the air and water.

(Reporting by Akanksha Khushi in Bengaluru; Editing by Sherry Jacob-Phillips)