This is the moment a bull runner was left humiliated when a raging animal ripped off his trousers and underwear in an arena in Spain.

Footage taken in Zaragoza, in the north of the country, shows the entertainer being carried along on the bull's horns for several metres while members of the audience scream.

Seconds later he is dumped on the ground before the angry animal wrenches its head sideways - pulling the man along the sandy ground and ripping his clothes off in the process.

Helpers rush in to distract the creature as the semi-naked victim drags himself free and limps to safety with his trousers around his ankles.

He can then be seen vaulting over a barrier as onlookers laugh. Video posted on YouTube by Planetatoro Toro suggests the incident happened on Monday.

Angry: The bull runner did his best to sprint away from the enraged creature after it started running after him

Power: The bull easily carries the entertainer along on its horns for several metres before dumping him on the ground

Awkward: The bull wrenches its head in a bid to free itself - but in doing so manages to rip the man's trousers and underwear off

Lucky escape: The bull runner was left naked from the waist down after the bull charged off with his outfit

Humiliating: He eventually managed to free himself after others came in to distract the enraged animal

Bruising encounter: After losing his clothes, the man was able to pick himself up before sprinting away to safety