SB I-17 closed at stack for hours after fatal motorcycle wreck

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PHOENIX -- The Department of Public Safety is investigating a deadly wreck involving a motorcycle rider that closed southbound Interstate 17 at the stack early Monday morning.

Freeway closed for hours

It happened just before 3:45 a.m., on I-17 just north of Jefferson Street.

According to investigators, there were several 911 calls reporting a speeding motorcyclist.

The motorcycle slammed into the back of a semi and burst into flames.

According to investigators on the scene, the impact was so severe and the fire so intense that the motorcycle melted into the back of the trailer.

The rider was killed instantly.

Lt. James Warriner, a spokesman for DPS, said the driver of the semi was shaken up, but not injured.

DPS investigators were on the scene for several hours. They had the freeway back open to traffic by about 7:30 a.m.