Threatening voicemails received bv Hulk Hogan and his family were played on a US radio station yesterday.

The highly-disturbing phone messages were broadcast by radio host Bubba the Love Sponge - a Hogan family friend - on his Monday morning show.

The calls are believed to have been made by Frank Graziano, the brother of John Graziano, who was left with permanent brain damage after suffering head injuries last August when Hogan's son Nick Bollea crashed his Supra into a tree.

The voice on the tape repeatedly refers to Hogan as a "cocksucker" and his estranged wife and daughter as "whores."

It also threatens, "every Marine, every gangster, every lowlife, every crackhead and every scumbag is going to be looking" for Hogan and his "homosexual" son.

Florida police confirm that they are conducting an "open investigation" into calls "made from the Graziano family to the Bollea family," reports Foxnews.com.