Officials from the L.A. County Coroner's Office have come to a conclusion on what caused the unexpected death of rap icon Heavy D.

According to TMZ, the coroner's office ruled that the 44-year-old hip-hop star died from "natural" causes. Specifically, his death was attributed to pulmonary embolism, a blockage of an artery in the lungs caused by blood clots. Apparently the long flight Heavy took home after performing at the Michael Jackson tribute concert in Europe might have been a huge factor.

As previously reported, Heavy D passed away on Nov. 8 of an apparent respiratory failure that officials now know was caused by deep leg vein thrombosis, an ailment that is often associated with the immobility caused by long airplane flights. In the rapper's case, a clot formed in his legs and traveled up to his lungs.  

The round-trip home to L.A. from the tribute concert in Cardiff, Wales, had concluded just days before Heav's death.

BET.com is your #1 source for Black celebrity news, photos, exclusive videos and all the latest in the world of hip hop and R&B music.

(Photo: Jeff Daly/PictureGroup)