A man is in jail after speeding over 100 mph in a car with his son in the front seat on the Glenn Highway.

Anchorage police say at 4:30 Monday morning an off-duty officer in his patrol car attempted to stop a 2008 Ford Taurus for driving too fast on the highway near South Birchwood Loop.

The car sped off past the officer, according to police, and the officer called dispatch.

Meanwhile, a sergeant clocked the car going over 100 mph on the highway in a 65 mph speed zone. The sergeant pulled the car over at the McCarrey Street overpass where the driver stopped, police said. The driver, 40-year-old Ryan P. Brannon, allegedly showed signs of being impaired. 

A release from police stated this is when they saw Brannon's elementary-school-aged son in the passenger seat. The Office of Children's Services came to the scene to pick up the boy. 

Brannon was arrested and taken to the Anchorage Correctional Complex. He has been charged with operating under the influence, eluding, reckless endangerment and child neglect. 

There were no injuries in this incident.

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