MIT on Lockdown After Armed Gunman with Body Armor Spotted in Campus Building

The Massachusetts Institute of Technology says that a man wearing body armor was spotted in a campus building carrying a long rifle, and that the school is now on lockdown.

In a statement issued Saturday morning, MIT said that several law enforcement agencies have responded.

The Cambridge, Mass., school is advising students and staff to remain indoors and report any suspicious activity to campus police.

Further details have not yet been made available.