The Asian-American frat was reportedly rushing a four-person pledge class without the college's knowledge.
Pledges are blindfolded and a bowling ball-type weight is put into a bag and tied to their backs. They are then forced to walk through a human “tunnel” while others try to tackle them. The goal is to make it all way through the tunnel.
Police sources told Brown Deng was knocked down several times during the game, causing his injuries.
It was only "after some time" that someone bothered to drive Deng to the closest hospital.
Deng, who suffered major brain trauma, was subsequently placed on life support, but ultimately passed away on Monday.
Pi Delta Psi pledging has since been suspended across all chapters pending the results of an investigation.
"Michael’s death is a deeply painful reminder that no individual should ever be put into a position where his or her personal safety is in jeopardy," the college's statement continued. "Our deepest sympathies go out to Michael’s family and his friends both at Baruch and at home."
Baruch also announced that the fraternity's rights and privileges had been suspended indefinitely.