Health and safety inspectors were at Chessington World of Adventures yesterday to see who is responsible for a child falling from a height while queuing for a ride.

Jessica Blake, four, suffered fractured ribs and a fractured skull after falling about 14ft from the Tomb Blaster queue on Thursday lunchtime.

Hundreds of wellwishers have left messages of support on Facebook and Twitter.

Her uncle said yesterday she was still fighting for her life at St George’s Hospital, Tooting.

Two Health and Safety Executive (HSE) inspectors were at the theme park yesterday looking at fence panels in the queue to the ride, which is closed.

A spokeswoman for the HSE said they were looking to see what was behind the incident and if anybody was culpable.

Parents posting on the Chessington World of Adventures Facebook page have called for the investigation’s findings to be made public as soon as possible.

But the HSE spokeswoman said the investigation into how the girl from Sheerness on the Isle of Sheppey, Kent, fell could take months or longer depending on the complexity of the case.

The HSE has the power to issue guidance or information to businesses, to withdraw approvals, issue formal cautions or even issue prosecutions.

A spokeswoman for Chessington World of Adventures said: “The park is open and operating normally and until all investigations have concluded we are not in a position to comment further.

“We have been in touch with the family, and in line with their wishes will now await further news. Our thoughts and best wishes are with them at this difficult time.”

The theme park also denied claims it had removed or deleted comments from its Facebook page after criticism it was shielding itself from criticism or comment over the accident.

It said that some comments may been deleted by users or not passed through its filter but none had been deleted by the theme park.