The 17 year old took to Twitter.com on Wednesday (14Oct15), to post a photo of herself lying in a hospital bed, hooked up to several monitors.

She added the caption: "welcome to the hospital Alli. karma... never liked those dumb hover boards anyway."

Her mum, Angie Simpson, reports her daughter was taken to the emergency room via ambulance following the scary accident. It is unclear how badly Alli was injured.