UPDATE:
A naked man was shot dead by Miami police as he chewed at the face of another naked man.
The circumstances of the horrific attack are still unknown – and the victim remains in hospital with grave injuries.
The gruesome drama unfolded on Saturday off the city's MacArthur Causeway, with the aftermath captured on film by a Miami Herald surveillance camera.
Witness Larry Vega told WSVN-Fox 7 he saw a man biting the victim’s face.
The cyclist notified police, who ordered the man to stop.
Vega added: “The guy just stood, his head up like that, with pieces of flesh in his mouth. And he growled.”
The officer fired, but the man continued to chew, prompting him to continue shooting, eventually killing him.
Police say the attacker may have been suffering from a drug-induced mania which causes the body to heat up, causing some users to strip off, the Miami Herald reported.
Armando Aguilar of the Miami Fraternal Order of Police suggested the drug may have been a new form of LSD.
He told NBC 6: "Seventy-five to 80 percent of his face was missing, and he was actually swallowing pieces of the man's face."
The identity of either man has not yet been released.
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