After investigating suspicious packages at the World Financial Center, which prompted officials to evacuate one of the buildings on Thursday, the NYPD determined the parcels were harmless.

The packages were delivered to 2 World Financial Center. The building that houses Japanese investment bank Nomura Holdings Inc., was forced to abandon their building once word got out about a potential, deadly threat.

We were evacuated around 11 and weren't told why. Hearing now it's about a package, a senior trader for the firm said, according to the Wall Street Journal.

The NYPD bomb squad was called in to investigate a package that was spotted during a routine screening, reported the Associated Press.

After law enforcement officials investigated the package, they determined it was a novelty grenade that prompted authorities to evacuate the building, reported CNN.

There is no word yet if the package was a deliberate attempt to scare workers at the World Financial Center.

 People were a little nervous getting outside, said another employee at Nomura, earlier today. But once we left the building everything was fine. Everyone's pretty calm right now.

The World Financial Center includes four towers that house some of the New York City's largest businesses.

The World Financial Center and its grand centerpiece, the 10-story glass pavilion Winter Garden, features extensive public spaces, dozens of shops and restaurants, and a stunning outdoor waterfront esplanade, according to the website.

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