A Northeastern University staff member suffered minor injuries to his hand Tuesday after a package exploded when it opened. A school employee said the package was in a hard plastic case when it exploded in the virtual reality lab.

The victim, a 45-year-old man, sustained injuries in both forearms and was taken to the hospital after Boston EMS responded to the scene.

Police responded to a 911 call at 7:18 p.m. ET. The package was sent to Holmes Hall, the building which hosts the university's immersive video lab.

The package came in a "Pelican style" case, which is generally a hard case made of plastic used to carry cameras and video equipment.

The case contained a note criticizing virtual reality and Facebook founder Mark Zuckerberg.

There was a second package that was rendered safe by the bomb squad, Felipe Colon, Boston Police Superintendent said.
Following the incident Tuesday night, the university canceled all night classes and events.
The university issued a statement Wednesday afternoon that affirmed its commitment to safety by increasing patrols and security across its campus.
"It's very important to note that our campus is secure, and we will maintain a secure campus in perpetuity," said Michael Davis, the chief of Northeastern University Police Department.
As of Wednesday afternoon, classes, research and other campus activities had resumed, the university said.
A joint investigation effort is underway involving the FBI, the Boston Police Department and the Northeastern University Police Department.
Investigators remain unsure how the package made it to the campus, though CNN reported that it was not sent through the postal service.
Explosion