A father claims he caught an Uber driver raping his daughter after he tracked her on a new app when she didn’t come home.

The horrified dad allegedly found his 25-year-old daughter being attacked in the backseat of the ride-share car in Baltimore, Maryland.

According to CBS, the dad exchanged “words” with the driver, who then threw his daughter’s handbag at him before driving off.

The alleged sex attack happened in the Mays Chapel area just before midnight on Saturday.

Cops are treating the claims as a rape investigation, reports CBS.

Cpl. Shawn Vinson, of Baltimore County Police, said: “This is a very serious allegation. The father of the victim called the police and the victim is cooperating with police.

“This is an on-going investigation. Uber has worked closely with our detectives in this matter. We will release more information as the investigation progresses but it is vital at this time to withhold specific details to allow our detectives to continue their investigation.”

‘Appalling beyond words’

The woman’s dad was able to trace her daughter to West Timonium and Jenifer roads via an unidentified app.

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Police said the incident was “isolated” and they do not believe there are other victims.

Uber put safeguards in place in America last year to prevent sexual assault and to keep riders more secure.

They included a way to contact 911 through the app, GPS tracking of every ride and annual checks of criminal and motor vehicle records of drivers.

Customers can also designate trusted friends and family to track their ride.

In a statement to CBS, Uber described the allegations as “appalling beyond words.”

The firm added: “We removed the driver from the app as soon as this report was sent to us. We will work with police on their investigation.”