New York’s Port Authority Bus Terminal has reopened entrances that had been affected by a police investigation of an unidentified white powder that turned out to be harmless.

Spokesman Joe Pentangelo says bus service Wednesday morning was not affected.

The police investigation occurred at the close of rush hour, when the area around the terminal is still usually packed with morning commuters.

The terminal is a main entryway into the city. It is across the street from The New York Times’ headquarters.