Jennifer Camacho said that the front-seat passenger of a vehicle she had ordered after a night out in January attacked her with a three-inch blade as she climbed into the back of the car, slashing her face several times, the BBC reports.

According to her attorney Bryant Greening, Camacho had to fend off her attacker, a 34-year-old woman, until police arrived. The two had never met before, according to Greening, and the attack was unprovoked.

Uber’s insurance carrier has refused to compensate Camacho on the grounds that the altercation could not be considered accidental and did not involve the company.

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Greening, however, said that the firm was negligent and “has a responsibility to our community… They have a duty to protect against harm and an obligation to help injured customers,” CBS reports.

The lawsuit seeks a more than $50,000 in damages from Uber and $100,000 from Camacho’s attacker.

Launched in 2014, UberPOOL is the company’s cheapest level of service. It allows riders traveling in the same general direction to share a care and reduce the cost of the trip.