PETALING JAYA: Fed up with misbehaving passengers on its trains, RapidKL has warned customers who were unruly that “Annabelle” would haunt them forever.

Annabelle is a Rageddy Ann doll that is allegedly demented and was the inspiration for the horror movies Annabelle in 2014 and its sequel Annebelle: Creation this year.

“Dear valued customers, lately we've been receiving surprise visits from Annabelle.

Mind your manners while you're on our trains or....she will haunt you FOREVER,” RapidKL said in a Facebook post on Tuesday with the hashtags #annabelleisnear #citizenwithmannerswanted #forabetterfuture.

With the post were two photos - one showing Annabelle at the entrance of the automated turnstyle and another of it taking a ride on the MRT.

Rapid KL has recently taken to social media to highlight examples of poor etiquette among commuters using its rail services.

One post was of a passenger using horizontal handrails in the train as if they were gym pull-up bars while another saw a commuter occupying two seats with his legs stretched out.

The MRT-SBK Line has been plagued by incidents of vandalism since it opened to the public on July 17.

Vandals have damaged specially designed benches in at least four underground stations and even broken a spotlight.

Rapid KL is the operator of the MRT-SBK Line, Kelana Jaya LRT Line, Ampang LRT Line, Sri Petaling LRT Line and the Monorail service.