“I just would like to thank anyone who was at Pomare Station this morning and witnessed the hit and run and tried to save my sister,” they wrote.
“I am sorry you had to witness a horrendous event. We are grateful to know she wasn’t alone.
“Fly high with the angels, baby sister.”
Members of the public poured out their support for the woman’s family, with hundreds of people sharing their condolences on social media and sending thoughts and prayers for her loved ones.
A Stokes Valley man who was catching the train that morning arrived a few minutes after the incident.
“When I got to the platform yesterday I saw some poor constable sprinting up and starting chest compressions. I had thought it was just another nose-to-tail that occur there every few weeks,” said the man, who wanted to remain anonymous.
“A few cars had pulled over - a red station wagon car that was pointing north had its bumper on the ground.
“That road crossing is a menace and Hutt drivers are often psychos.”
A “few dozen” passengers at the station were gathered near the centre of the platform watching the tragedy unfold as they waited for the 7.15 train.
He said drivers near the station today were “being very kind to pedestrians”, slowing right down and taking extra care.
Another person posted on Twitter asking for people in Wellington and the Hutt to keep an eye out for a car that might have damage on it.
“There was a hit and run near Pomare Station this morning. The driver did not stop. A person from my work was killed,” the Twitter user said.
They said it had been “a sad afternoon at work.
“Really hope the driver does the right thing and comes forward.”
The road separating the commuter car park from the train station is a 70km/h zone. There is a small pedestrian island in the middle of the road for people to cross to.
It is not known where exactly the collision occurred.
Hutt City Council has been contacted for comment on the road layout and speed limits.
A spokeswoman said council “extends our sincere condolences to the loved ones of the person who died in this incident.
“We refer all questions to police as an investigation is under way.”
Greater Wellington Regional Council, which is responsible for the trains, has also been contacted for comment.
Anyone with information should contact police on 105 and quote event number P055520460.