A sign that is Dangerous

Description

The sign is at Ferrobank in Emalahleni kwaguqa next to Vanchem steel and Vanadium factory, behind the sign there is a big ditch which is preventing people from passing by to the field where there are sinkholes.The sign indicates that there is a sasol gas pipe but what is surprising is that the area is burning with sinkholes,One may wonder where the pipe is passing underground whether is passing through the street at Vanchem.As one can see he background there is a smoke coming from the ground,it is where the sinkholes are.What danger is this sign referring to ...is it going to explode PR is just a sign that stopping people from crossing the field as it used by people,investigation still continues