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Vic family sparks interstate search

AAP logoAAP 1/09/2016 Kaitlyn Offer

WHAT WE KNOW:

* Mark and Jacoba Tromp and their three adult children Mitchell, Ella and Riana leave their Silvan home on Monday, August 29

* The family left in Ella's grey Peugeot and headed to NSW

* On Tuesday morning, Mitchell leaves the group near Bathurst and makes his way to Sydney and then catches a train to Melbourne

* Ella, Riana and parents make it to Jenolan Caves, about 150km west of Sydney

* At the caves, on Tuesday, the daughters leave their parents and make their way to Goulburn

* Ella and Riana split up at a Goulburn service station because they want to get home different ways

* Riana stopped by police in her attempts to go home

* Riana taken to hospital, where she remains

* NSW Police informs Victoria Police about the family

* Ella drives home and arrives at the family's Silvan farm on Tuesday night while Victoria Police are there

* Mitchell arrives in Melbourne on Wednesday morning

* Ella's Peugeot found in Victoria, in Wangaratta, on Wednesday night

* A man, believed to be Mark, seen running from the car.

* On Thursday, Jacoba Tromp is taken to Yass hospital by a passerby who sees her in the NSW township

* Extensive searches of Wangaratta fail to find Mark Tromp

WHAT WE DON'T KNOW:

* Where Mark Tromp is

* How Mark and his wife became separated

* What the parents' movements were after daughters left them

* Why the family was "emotionally traumatised"

* Whether it was Mark seen running from Ella's car in Wangaratta

* Why the family left their home unlocked, leaving without passports, credit cards and most of their phones

* Why Mitchell's phone was tossed out a window during the trip.

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