Teen cited after allegedly brandishing knife at bicyclist while riding in car with mother

A teenager was cited Sunday after allegedly brandishing a 10-inch knife at a bicyclist while driving in a van with his mother, police said.

Before 5 p.m., a 37-year-old bicyclist told police that he was riding his bike on Palmer Avenue near Adams Street when a van behind him kept honking the horn, said Glendale Police spokeswoman Tahnee Lightfoot.

He subsequently stopped at a stop sign and yelled, “What?”

As the van passed him, a passenger — later determined to be a 15-year-old boy — brandished a “very large” knife and yelled something that the biker didn’t understand, Lightfoot said.

While police detained the 45-year-old Glendale driver and her son to search the car, they found a 10-inch knife in the center console of the vehicle.

The minor, who was not identified, was cited for exhibiting a deadly weapon in a threatening manner and released to his mother, Lightfoot said.

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Alene Tchekmedyian, alene.tchekmedyian@latimes.com

Twitter: @atchek