The FBI's Boston Field Office arrested two Massachusetts men in connection with an explosion at Harvard Medical School on Saturday morning.

Two men were arrested by the FBI on Tuesday morning in connection with an explosion that went off in Harvard Medical School over the weekend. The pair, Logan David Patterson, 18, and Dominick Frank Cardoza, 20, face charges of conspiracy to damage by means of fire or an explosive, per the charging document.

Harvard's medical school was rocked by a huge explosion early Saturday morning. Law enforcement said the blast appeared to be deliberate and that two people were seen fleeing as they arrived. The explosion took place at about 2.48am in the fourth floor of ...