British Transport Police
The 74-year-old was travelling home when he was beaten up
The station was closed during rush hour.
A 38-year-old man was arrested at the scene.
Police want to find the man responsible.
Police believe the blast was caused by a faulty drill battery.
A battery short circuit is thought to be the cause.
The deaths are being treated as 'unexplained' amid suggestions the men were graffiti artists.
Victim 'pulled around by her hair'.
Demonstrations led by Kurdish activists.
Passengers jumped onto the tracks near Lewisham station.