The explosion happened in the early morning hours of Saturday on the fourth floor of Harvard's Goldenson Building. (Photo: Harvard University Police Department)

The Federal Bureau of Investigation (FBI) on Tuesday announced that two men have been arrested in connection with an explosion at Harvard University’s Longwood Medical Campus .

According to the FBI, the two men from Massachusetts were arrested in a joint operation by special agents and officers with the agency’s Boston Joint Terrorism Task Force and Harvard University Police Department. https://platform.twitter.com/widgets.js

The explosion happened in the early morning hours of Saturday on the fourth floor of Harvard’s Goldenson Building, which is on the university’s medical campus at 220 Longwood Ave.

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