A teenager has been killed by a train near Keon Park station on the South Morang line.
The accident happened just after 6am.
Police said teen appeared to have tripped and fallen while attempting to cross the tracks about 300 metres from Keon Park station.
He was struck by the city-bound train and died at the scene about 6.15am.
A spokesman for Metro said trains would not resume for several hours. All trains between South Morang and Keon Park stations will be replaced by buses.
For help or information visit beyondblue.org.au, call Suicide Helpline Victoria on 1300 651 251, or Lifeline on 131 114.
Source: 9 News