Motorcyclist dies after driving off cliff, companion survives

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Both driver and companion in their 70s

PHOENIX - An investigation is underway Sunday morning to figure out why a motorcyclist lost control and drove off a cliff.

Police say two people on the motorcycle lost control and drove right off a cliff on the road to the top of South Mountain. Both people on the bike were in their 70s.

The male driver died but his female passenger sustained non-life-threatening injuries.