The terrifying episode – captured in grainy smartphone footage – saw the female traveller thrash uncontrollably in her seat while speaking in tongues.

The scenes bear an eerie resemblance to 1973 blockbuster The Exorcist, which sees a 12-year-old levitate, speak in tongues and rotate her head a full 360 degrees when possessed by demons.

Eyewitnesses said the unidentified woman had previously vomited on the packed bus, which was reportedly forced to stop at the behest of horrified passengers.