UPDATE: Tributes are flowing for Stacey Richter and Stephanie Mylonas, the two basketball players killed in a car crash north of Murgon.
A tribute has been posted on Basketball Queensland's website, which describes the two women as "treasured members" of the basketball community.
"A minute's silence will be held prior to each of the QBL men's and women's finals matches over the next fortnight to honour the memory of Stephanie and Stacey," the tribute reads.
"The thoughts of the Queensland basketball community are with the families of Stephanie, Stacey and Jodie and the entire Toowoomba Basketball Association, during this incredibly difficult and sad time."
Australian NBA star Andrew Bogut tweeted his "thoughts and prayers". A similar message came from dual Olympian Mark Worthington.
"Thoughts are with the families and friends of the young Toowoomba girls who lost their lives coming home from a weekend of basketball," he tweeted.
Former Hockeyroo Nikki Hudson used social media to voice her sadness.
"My deepest condolences and thoughts to your families," she wrote.
Former Pittsworth Mayor Cr Ros Scotney said the Pittsworth community was devastated by the news.
"You don't expect two beautiful young girls to have their lives cut short like this," Mr Scotney said.
"If anyone had daughters, they would say I hope my daughters grow up to be like Stephanie and Stacey.
"Pittsworth was very proud of them, they had the world ahead of them.
"When tragedy hits a small community like this, we all have to rally together."
Toowoomba Mountaineers chairman Darren Mentor last night confirmed Stacey Richter and Stephanie Mylonas had died after the car they were travelling in yesterday afternoon was involved in a head-on collision.
The car was being driven by Mountaineers team mate Jodie Wright, who also had her two children in the car with her.
Wright and her two children are believed to have suffered minor injuries in the crash and were transported to Murgon Hospital.
They were returning home after the Mountaineers played their final game of the women's Queensland Basketball League season yesterday in Bundaberg.
They were travelling separately to the rest of the squad, with the rest of the women's team and men's squad returning together on a bus.
Police confirmed there was a serious traffic crash on the Burnett Hwy yesterday at Booubyjan.