A man threatened a driver with a knife on Monday morning in Longmont, leading to a brief road closure.

Around 9:08 a.m., Longmont Public Safety officers responded to the area of Ken Pratt Boulevard and Sherman Street to a report of someone threatening a driver with a knife, according to City of Longmont spokesperson Rogelio Mares.

Justin Gribben, 41, was arrested in connection with the incident and accused of felony menacing and aggravated assault. Gribben is currently in custody at the Boulder County Jail, according to online jail records.

Ken Pratt Boulevard, also signed as Colorado 119, was closed westbound between Sherman Street and Nelson Road for between 10 and 12 minutes, Mares said.

Gribben has previously been convicted of third-degree assault, theft between $2,000 and $5,000 a

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