PORN that appeared on an electronic touch screen at Perth’s new Yagan Square was manually loaded by a member of the public following a “software malfunction”.

Pedestrians saw the Pornhub home page as they walked past the information screen at a mall entrance on Thursday evening.

While some found it funny and posted photographs on social media, others were horrified by the images.

A Metropolitan Redevelopment Authority spokeswoman said on Friday the porn was displayed on one screen for seven minutes and the other was switched off before it could be compromised.

“Early investigations indicate a software malfunction has allowed an internet browser to be accessed via the touchscreens,” she said.

“It appears the content was manually loaded by a member of the public.” Both screens will remain off until the investigation is complete and the MRA is assured it will not happen again.

“The contractors involved have been instructed to undertake a full investigation and provide a comprehensive report on the incident and ICT set-up of the screens,” the spokeswoman said.

Police will become involved if it is determined a crime has been committed.