Police, firefighters and ambulances descended on Chafford Hundred station tonight. 

Rumours were rife on social media that three young men had been attacked with acid outside the station.

The drama unfolded at about 8.45pm.

Witnesses even observed the three victims being hosed down at the scene by firefighters. 

One onlooker told how another young man was cuffed at the scene.

Anyone with information should call police on 101.