New Mexico police say Tito Jackson suffered a medical emergency behind the wheel before he died on Sunday .
Cops told the Daily Mail Monday that a passerby noticed Jackson was in need of medical attention shortly after 6 p.m. while he was traveling from New Mexico to Oklahoma, where he recently moved.
The driver flagged down the police near the American Heritage Plaza shopping center, where Jackson had seemingly stopped.
The Jackson 5 founding member was transported to the hospital via ambulance. However, he was pronounced dead hours later.
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The “ABC” singer was 70.
Steve Manning, Jackson’s former manager, claimed the musician had a heart attack while making the cross-state trek.
However, an autopsy has yet to be conducted and his official cause of death has yet to be revealed. A formal investigation is still ongoing.