BROOKLYN - Police mobilized in East New York Wednesday for a false alarm in the search for missing autistic boy Avonte Oquendo.

Sources on the scene say that a teenage look-alike was mistaken for the 14-year-old, who is non-verbal and hasn't been seen since leaving his Queens school more than four weeks ago.

A photo had also surfaced last week of another boy resembling Oquendo riding the subway, but police later confirmed it was not him.

Anyone with information on his whereabouts should contact police. A reward is being offered for his safe return.