Laura Szewc was a passenger in a Vauxhall Corsa involved in a single vehicle road traffic collision near Nixon’s Corner close the Donegal border.
She was a student at North West Regional College and also worked at the Travel Lodge Hotel.
Two other females were taken to Altnagelvin hospital for treatment to their injuries.
Laura was from the Cornshell Fields area of Derry.
Friends posted heartbreaking tributes to Laura on social media on Thursday with saying they were “heartbroken” and “devastated” at her tragic death, saying their “bright star” had been “taken too soon”.
some describing her as a “little princess”, an “amazing girl” and as the “brightest star”.
It is understood that Laura’s family are originally from Poland.
Laura’s sister-in-law, Stacey Glasgow, set-up a fundraising page on JustGiving.com to help pay for relatives belonging to Laura travelling from Poland to Londonderry for the funeral.
“Please help us to support and raise funds to help towards Laura Szewc’s funeral costs,” wrote friend Stacey.
“Our beautiful girl was tragically taken from us at the age of 18 in a horrific car crash. Laura was such a bright beautiful young girl who had her whole life ahead of her and was loved by so many people.
“She had so much ambitions and always had a smile on her face. You will be sorely missed by everyone darling we love you all so much!
“Please help us to bring Laura’s immediate family from Poland to help them say their goodbyes.
“Thank you to everyone for their support at this sad sad time,” added Stacey.
The target set on the page is £6,000 and at the time of publishing almost 150 people had donated more than £2,200.
For more information on the fundraising page set-up in memory of Laura Szewc visit www.justgiving.com/crowdfunding/stacey-glasgow