The investigation continues into an explosion at a Harvard Medical School building in Boston that police say was an intentional act.
Police say there was no structural damage to the Goldenson Building on the Longwood Medical Campus, and that there were no injuries from the blast.
The building remained open and accessible over the weekend, and cleaning crews have been working to make sure things are ready for normal operations today.
Police are trying to identify two people who they suspect are responsible for the explosion.
(Photos: Boston Police Department)