Footage of a woman who collapsed and began convulsing in a supermarket has sent social media into a frenzy with some suggesting she was possessed by a demon.

The video shows a woman walking along a shopping aisle in China when a package begins shaking on a shelf and falls to the floor.

The woman turns around, picks it up and begins putting it back on the shelf.

But as she does, she suddenly drops her belongings and begins convulsing and moaning before falling to her knees.

Footage of a woman who collapses and begins convulsing in a supermarket has sent social media into a frenzy

She turns around and picks up a package that had fallen of a shelf and puts it back. But as she does, she suddenly drops her belongings and begins convulsing and moaning

A concerned bystander cautiously approaches before the woman lets out a frightening scream and the bystander jumps back in fear.

A second onlooker tries to comfort her before a sudden convulsion and another almighty howl sends him falling backwards.

He regroups and begins what appears to be meditation exercises with the lady, before yet another petrifying shriek appears to blur the security camera and shake the store's shelves.

She falls to her knees before a concerned bystander cautiously approaches her

A second onlooker tries to comfort her before a sudden convulsion and another almighty howl sends him falling backwards

Some social media users think the woman was possessed by a demon, but others say she was having an epileptic fit

The woman finally calms down and as three bystanders usher her away, the package falls to the floor once more.

Some social media users think the woman was possessed by a demon, but others say she was having an epileptic fit.

Some users suggest the entire scenario was staged by actors.

The woman finally calms down and as three bystanders usher her away