BROOKLINE, Mass. – Authorities are investigating the death of a Massachusetts Institute of Technology professor after he was found fatally shot inside his Boston-area apartment earlier this week. 

Nuno F.G. Loureiro, 47, died at a hospital on Tuesday morning after being shot on Monday night inside his apartment in Brookline, Massachusetts, the Norfolk District Attorney’s Office said in a statement. 

Officers with the Brookline Police Department arrived at the three-story apartment building after receiving reports of a man shot at his home, prosecutors said. Loureiro was pronounced dead Tuesday morning. 

Here is what we know about the investigation:

The shooting took place in Brookline, an affluent suburb a few miles outside of Boston. It is being investigated as a homicide, and no suspects have been taken into custody. 

The Brookline Police Department and Norfolk County District Attorney’s Office are investigating Loureiro’s death, the Providence, Rhode Island – located about 50 miles away – are still searching for the gunman who killed two Brown University students and injured nine others during a class study session on Saturday. 

However, Ted Docks, special agent in charge of FBI Boston, told reporters on Tuesday that, "It seems that there's no connection," between the two crimes. 

The FBI did not immediately respond to Fox News Digital’s request for comment. 

Loureiro joined MIT in 2016 and was appointed to lead the school’s Plasma Science and Fusion Center last year, when he aimed to research and expand clean energy technology, studied physics at the Instituto Superior Técnico in Lisbon, Portugal in 2000, and later went on to earn a doctorate in physics at Imperial College London, U.K., in 2005.

Additionally, he completed postdoctoral work at the Princeton Plasma Physics Laboratory from 2005 to 2007, and at the UKAEA Culham Centre for Fusion Energy from 2007 to 2009. Before joining MIT in 2016, Loureiro held a research position at the Institute for Plasmas and Nuclear Fusion at IST Lisbon. 

In a statement posted to social media, U.S. Ambassador to Portugal John J. Arrigo added, "I extend my deepest condolences to the family, friends, and colleagues of Nuno Loureiro, who led MIT’s Plasma Science and Fusion Center. We honor his life, his leadership in science, and his enduring contributions." 

Fox News Digital's Brooke Curto contributed to this report.