An urban explorer has left social media users stunned after finding a mysterious box in a sewer – with people telling him "don't open it".
Jose Flores, 23, is a student and content creator from Mexico with nearly six million followers on TikTok, where he shares his adventures in abandoned buildings and unusual locations.
In a recent clip, which has left social media users stumped and racked up over 10.4 million views and almost 900,000 likes, he reveals a strange metal box.
