A motorcycle crash on the northwest side of Tucson closed a part of Twin Peaks Road as police investigated the cause of the accident.
According to Capt. Adam Goldberg, a fire district spokesman, the accident occurred around 4:30 p.m., when a 26-year-old man lost control of a motorcycle he was driving and crashed on the 10000 block of Twin Peaks Road near Silverbell Road.
The motorcyclist was not wearing a helmet at the time, said Goldberg.
He was transported to a nearby hospital with life-threatening injuries.
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