Police: Driver crossed center line, causing fatal West Chester collision with ambulance

A West Chester Twp. investigation determined a woman caused a fatal crash by veering left of center into an oncoming ambulance, killing her and seriously injuring a 14‑year‑old passenger.

The crash occurred at 5:35 p.m. Jan. 6. when a 2007 Infiniti FX35 driven by Ernestina P. Obeng, 43, of Liberty Twp., traveling northwest in the 8500 block of Beckett Road near Beckett Park crossed left of center into the oncoming southeast lane and struck a West Chester Fire Department ambulance, according to a report released today by West Chester Twp.

The ambulance was within its correct lane as it returned from a trip to take a patient to Cincinnati Children’s Liberty Campus, according to the report.

The collision caused the Infiniti to strike the curb and roll over two-and-a-half times, ending up on its roof. Both Obeng and an 14-year-old passenger were ejected from the vehicle.

A 2007 Infinity FX35 rests on its top following a crash with an ambulance Tuesday, Jan. 6, 2026. A West Chester Police Department investigation determined a 43-year-old Liberty Twp. woman caused a fatal crash by veering left of center and into an oncoming ambulance, killing her and seriously injuring a 14‑year‑old passenger. PHOTO COURTESY WEST CHESTER POLICE DEPARTMENT

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Obeng was pronounced dead later at UC West Chester Hospital. The passenger, who sustained serious injuries, was initially taken to West Chester Hospital, then flown via medical helicopter to Cincinnati Children’s Hospital.

Neither was wearing a seatbelt, according to the report.

Two witnesses told West Chester Police Department the Infiniti crossed left of center, but attempted to make a last second move to swerve back into the correct lane before striking the ambulance, which also attempted to avoid the collision.

The police report showed Obeng was negative for for drugs and alcohol on all toxicology tests that were conducted.

A 2007 Infinity FX35 rests on its top following a crash with an ambulance Tuesday, Jan. 6, 2026. A West Chester Police Department investigation determined a 43-year-old Liberty Twp. woman caused a fatal crash by veering left of center and into an oncoming ambulance, killing her and seriously injuring a 14‑year‑old passenger. PHOTO COURTESY WEST CHESTER POLICE DEPARTMENT

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An investigation concluded the Infiniti “did not appear to be traveling at a high rate or reckless speed.”

Police Chief Brian Rebholz said the department’s patrol officers and accident investigation team have incredibly difficult jobs.

“This was a tragic accident,” Rebholz said in a statement this morning. “Our officers did their utmost to perform lifesaving measures at the scene, investigate the situation with care and empathy, and provide an accurate and thorough accounting of the incident. I am, as always, incredibly proud of my team.”

A damaged vehicle is seen on its top in a crash Tuesday, Jan. 6, 2026 on Beckett Road in West Chester Twp. NICK GRAHAM/STAFF

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