BOSTON (WHDH) - The Lyft driver who allegedly stabbed a woman in Mattapan was arraigned on a charge of assault with intent to murder on Tuesday.

The driver, 25-year-old Kiona Thomas of Roslindale, is accused of stabbing a 21-year-old woman on Blue Hill Avenue in Mattapan overnight on Monday.

Thomas was ordered held on $15,000 bail following her arraignment.

Witnesses say the woman was stabbed during an altercation with several people involved.

According to the District Attorney’s office, Thomas began arguing with a passenger about how many passengers would be traveling. During the argument, the customer called the victim to join her.

That victim eventually became involved in an altercation with Thomas.

“I just heard people fighting, that is pretty much it and it was a whole group of people,” said one neighbor. “It must have been eight or nine people out there fighting.”

Lyft is a ride-sharing service like Uber that works similarly to a taxi service.

A neighbor said she could hear the argument over the Lyft fare. “I heard the lady and she was like, ‘you didn’t pay me my money, get out of my car.'”

Bystanders helped carry the victim to a nearby fire station because she was in serious need of medical attention and was unable to stand.

The woman was transported to Boston Medical Center, according to BPD. She suffered life-threatening injuries but is expected to survive.

Lyft said in a statement that they were “deeply troubled to hear about this report,” and that the company is “available to work with law enforcement to assist in their investigation.”

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