UDPATED: Metro police arrest man for threatening train operator with knife

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WASHINGTON, D.C. — Police say a 29-year-old man was arrested for assault this morning after he banged open the door to the train operator’s cab and threatened the operator with a knife for not moving the train fast enough.

The suspect, identified as Norman Polk, has been charged with assault with a deadly weapon. Police say this deadly weapon was a three-inch folding knife.

The operator opened the door to his cab after hearing commotion made by Polk, after which point, Polk is accused of displaying a knife and threatening the operator. The operator secured the door and called for assistance.

This incident delayed the Green Line approximately fifteen minutes during morning rush hour. No injuries were sustained.