TERRIFIED skiers are watching their backs after a yeti-type monster was apparently caught on camera roaming the slopes in Spain.

A photo and video footage emerged showing a hulking beast with shaggy white fur walking upright on two legs as it darts between trees, reports The Sun.

The mysterious creature — resembling the elusive abominable snowman of the Himalayas — is said to have been sighted at Formigal in the Pyrenees mountains of northeast Spain.

A skier sparked the alarm after posting the image on a popular web forum with the caption: “Strange animal spotted in Formigal. What the hell is this?”

He added: “This morning skiing in Formigal with friends we’ve come across this. What the hell is it? A bear or a bloody yeti?

“We’ve told the ski resort but they haven’t taken us seriously.

“I bet there’s something on the loose out there. I know what I saw.”

Bosses of ski resort owners Aramon launched a frenzied search, but the mystery remained unsolved today with no trace of the beast in the surrounding valleys.

The picture was retweeted thousands of times by users convinced it was proof yetis exist.

Former Grand Prix motorcycle road racer Fonsi Nieto was among those who joined in the debate, tweeting: “Is there a bear in Formigal? Be careful.”

Others joked the animal was Snowflake, the famous albino gorilla who lived at Barcelona Zoo from 1966 to 2003, back from the dead.

Officials at the resort, which hosted the FIS Alpine Junior World Ski Championships in 2008, confirmed a search of the area had been conducted after an “alleged yeti sighting.”

But bosses tried to reassure skiers there was no cause for alarm.

A spokesman said: “We have spoken to the witnesses of the sighting to identify the area in which it took place and after combing the area we have found nothing.

“We believe therefore that there is no cause for alarm and that visitors’ security is guaranteed.

“In any case we will remain alert.”

Last week a British hiker was reported to have found footprints believed to be from a yeti in Himalayan mountain kingdom Bhutan.

This story first appeared in The Sun.