In response to a YouTube video recently posted by self-proclaimed urban explorers, Humber Bridge is under review for its security.The explorers scaled the bridge to alarming heights.

Night Scape on top of Humber Bridge

The two young men climbed to the top of Humber Bridge traveled 156m (510 ft.) vertically.Humber Bridge Board members and Humberside Police said they were cooperating on discussions of new security measures to prevent what police call "potentially hazardous activity." Likewise, Charity Humber Rescue chastised the climbers for their actions.

The group follows the leadership of a London-based vlogger, Harry Gallagher, whose 587,000 subscribers know him as Night Scape.They made the video Monday and posted the stunt on YouTube the same day.The video captures them quickly escaping when CCTV cameras turn their way.

The video is entitled, "Climbing the Tallest Bridge in England – Almost caught." It has already exceeded 265,000 views.

Humber Bridge spokesperson: "Although security at the cable access points is sufficient to stop the vast majority of people from gaining access, we are reviewing it."

An official police statement on the issue stated: "We're aware of the incident in question and our security advisors are working with the Humber Bridge Board to discuss ongoing and future security measures.

"From a safety perspective, we'd recommend people do not put themselves at risk by taking part in such potentially hazardous activity."

Paul Berriff, the founder of Humber Rescue, said he's recovered 95 bodies from the water, and he knows "all too well what the consequences of being on the bridge can be.This is extremely dangerous and just putting one foot wrong would result in death."