The real reason Flagstaff and Melbourne Central flooded Thursday night

While it was initially believed the incident was an act of vandalism, the Victorian transport infrastructure minister, Danny Pearson, said a review of CCTV by Metro Trains had proved otherwise.

“It would appear that an amorous couple in a (Melbourne Central) stairwell dislodged a sprinkler,” Pearson told reporters outside parliament on Wednesday.

“Perhaps a stairwell may not be an appropriate place to find yourself in after dinner.”