A man was robbed and sprayed in the face with an unknown substance on a rush hour tube this morning.
British Transport Police said officers were called at 9.33 am to reports of the attack at Elephant and Castle.
Paramedics treated the male victim at the scene for minor irritation to the face.
Tests have since confirmed the substance was not acid.
Officers are still at the scene and a search is underway to locate the suspects.
Video footage posted online shows fire engines, an ambulance and police cars arriving at the Bakerloo line station entrance near London Road.
Commuters have been advised to avoid the area while road closures are in place.
— blane (@blaaane) June 19, 2019