MIT's first statement:
At 10:48 PM today gunshots were reported near Building 32 (Stata) which is currently surrounded by responding agencies. The area is cordoned off. Please stay clear of area until further notice. Unknown if injuries have occurred.. Although the situation is considered active and extremely dangerous, an investigation is underway. Updates will be provided at this site when more information becomes available.
UPDATE — April 18, 2013, 11:20 p.m. EDT: MIT says they are still investigating.
Responding agencies continue to investigate active shooter incident at building 32(Stata). Please stay indoors and away from Building 32((Stata) and surrounding area.