NEW YORK (CBSNewYork)Amtrak is making changes at Penn Station to allow for an even deeper cleaning.

Starting Sunday, both Amtrak and NJ Transit concourses will close overnight on a daily basis.

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The Amtrak concourse will be closed from midnight to 5 a.m. and the NJ Transit concourse will closed from 1 a.m. to 5 a.m.

Trains at those hours will keep running.

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Amtrak says trains are also being cleaned more often and that more hand sanitizers are now available for commuters and employees.