July 17 (Reuters) - Package delivery company FedEx Corp FDX.N said its 2018 results would be hurt in part due to disruption of operations at its TNT Express unit as a result of a cyber attack in June.

The Netherlands-based TNT Express was still experiencing widespread service delays following the attack, FedEx said in a regulatory filing, and the company was unable to estimate when services at the unit would be fully restored.

(Reporting by Ankit Ajmera in Bengaluru; Editing by Maju Samuel) ((ankit.ajmera@thomsonreuters.com; within U.S. +1 646 223 8780, outside U.S. +91 80 6749 3067; Reuters Messaging: ankit.ajmera.thomsonreuters.com@reuters.net))