A Halloween bus advertisement for the Tulleys Farm Shocktober Fest featuring a zombie covered in blood has been criticised for being too scary.

The Advertising Standards Authority is investigating the banner, which is on the side of more than 100 buses, to see if any rules have been broken after receiving several complaints.

The advert, for the visitor attraction in Turners Hill, Crawley, West Sussex, can be seen on buses travelling through Crawley, Croydon and Kingston upon Thames, as well as Tunbridge Wells in Kent.

Stuart Beare, organiser of the Tulleys Farm Shocktober Fest event, said they had not intended to offend anyone with the advert.

He said: "The image of the zombie girl on our advertising is no worse than many images you'll see at this time of year in newspapers and magazines, on the Halloween costumes in the supermarket aisles and even on kids' TV programmes.

"We have been running our Halloween events for over 15 years, and they are extremely popular, with up to 5,000 people a night going through the six haunted houses and rides.

"We are waiting for the Advertising Standards Authority to come back to us with their judgment to see if we have to take the ads off the buses."

An Advertising Standards Authority spokeswoman said: "We have received three complaints about the Tulleys Farm Halloween bus ads so far.

"We had complaints about the same ad last year, and we did not find that there were grounds for an investigation.

"While it's possible the outcome will be the same this time, we will thoroughly assess each complaint we receive at this point until a decision has been made."

What do you think? Is the advert too scary? Or just a bit of harmless fun?