India, Nov. 2 -- Authorities said on Sunday that an explosion at Harvard Medical School's Goldenson Building appeared to be intentional, though no casualties were reported.

The Boston Fire Department later determined that the explosion was deliberate.

A subsequent sweep of the building found no additional explosive devices, police said.

Images released by the authorities show the two suspects wearing face masks and possibly sweatshirts.

No details have been released about the suspects or the type of explosive device used.

Published by HT Digital Content Services with permission from India Blooms....