An amber alert was issued after the boy's mother called police to say Anthony Lopez Hernandez was taken by force following an altercation during a supervised visitation with his father, Francisco Jose Lopez-Campos.
Lopez-Campos is a suspected gang member, and authorities say he has taken the child to Yonkers before.
Lopez-Campos, is said to be 5'5", 200 pounds and bald.
The suspect's vehicle has been located but was found empty.
Law enforcement officers, trained trackers, and the K-9 Unit are all in search of Lopez-Campos and the child.
Police say the suspect is potentially armed and considered dangerous.
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