NORTH ATTLEBORO, MA - AUGUST 22: Aaron Hernandez sits in the courtroom of the Attleboro District Court during his hearing on August 22, 2013 in North Attleboro, Massachusetts. Former New England Patriot Aaron Hernandez has been indicted on a first-degree

(CNN)Convicted murderer and former NFL star Aaron Hernandez was found hanged in his Massachusetts prison cell Wednesday morning, officials said, just days after he was acquitted in a separate murder case.

The 27-year-old former New England Patriots tight end hanged himself with a bed sheet attached to a window in his cell at the Souza Baranowski prison in Shirley, the Massachusetts Department of Correction said. His body was discovered at 3:05 a.m.

"Lifesaving techniques were attempted on Mr. Hernandez, and he was transported to UMass Leominster, where he was pronounced dead at 4:07 a.m.," the correction department's statement reads.

Aaron Hernandez, seen here in court in 2013, was convicted in 2015 in the killing of Odin Lloyd.

Aaron Hernandez, seen here in court in 2013, was convicted in 2015 in the killing of Odin Lloyd.

Hernandez, who was alone in his cell in a general population wing, hanged himself and had "attempted to block his door from the inside by jamming the door with various items," the statement reads.