Warning: Graphic content An elderly man who died while making love to a sex worker is wheeled away with the woman still attached. Courtesy LiveLeak

WARNING: Disturbing.

BIZARRE footage appears to show an elderly man who died while making love to a sex worker — then being wheeled away with the woman still attached.

The strange clip shows paramedics removing an alleged dead body on a hospital stretcher, complete with a moving silhouette of a woman still on top.

The woman and the old man are both hidden under a blue blanket, with a crowd of people congregating to watch on in horror.

The video first appeared on the Chinese video sharing website Miaopai and was later shared on LiveLeak with the title: “Old man died while having sex with a prostitute”.

The bizarre incident is believed to have taken place in China, although the exact location remains unknown.

Dying during sex is uncommon, however it is not unheard of and it can occur because of an increased strain on the heart while in the throes of passion.

The strain can lead to a sudden cardiovascular attack — and this is more common among men.

It is also possible to become ‘stuck’ to someone during a fumble. This rare event is known as ‘penis captivus’, which can occur when vaginal muscles clamp down too firmly.

Combining this with the fact that when a penis is in the vagina it becomes increasingly swollen, becoming stuck becomes even easier.

Dr John Dean, a UK-based sexual physician, told the BBC: “The muscles of the woman’s pelvic floor contract rhythmically at orgasm. While those muscles contract the penis becomes stuck and further engorged.”

It is only once the vaginal muscles relax, causing the blood to flow out of the penis, that it can be withdrawn.

It is not yet known what happened to this particular pair — or how they were separated.

Old man died while having sex with a prostitute: Believe it or not, his private part is still attached to her ... https://t.co/32qtepCm6H — Liveleak (@liveleak) February 3, 2016

This story originally appeared in The Sun.