“As they’ve got out of the lift, they’ve taken their hands off the pram for a very, very short period of time, and whether it’s a gust of wind or, we’re not quite sure, but it appears that the pram has instantly started to roll in the direction of the train lines.
“He’s just gone into parent mode and tried to save his two young daughters that have fallen on to the tracks and in doing so, it’s cost him his life, but it’s an incredibly brave and heroic act by the dad,” he said.
CCTV footage has been reviewed as police investigate, with the speed of the train also to be determined.
It was not due to stop at the station, Dunstan said.
“The train did stop only a short distance from the end of the platform, so it appeared that it was slowing as it was heading through the station,” he said.
Sydney Trains chief executive Matt Longland said drivers were instructed to approach stations with caution, and the staff involved were being supported.
“They’re two of our more experienced crew ... but clearly, the nature of this incident was very confronting,” Longland said.
The Rail, Tram and Bus Union said it, too, would be providing support.
NSW Premier Chris Minns said the father died in an extraordinary and instinctive act of bravery.
“That’s not going to bring him or his little daughter back, but it shouldn’t go unremarked upon,” Minns said.
“In the face of a terrible, terrible accident, he gave his own life to try and save his children.”
Dunstan said the surviving girl managed to avoid injury, Dunstan said.
“The police that climbed under the train said that she was sort of in between the tracks, the way that she’d fallen, and she was largely untouched,” he said.
The mother was traumatised.
“She’s a member of the local Indian community, so she’s being well supported up there by her friends and family, but she’s clearly in a state of shock and struggling with what’s happened today,” Dunstan said.
Members of the public were urged to avoid the area and buses would replace trains for some time.