NEW YORK - Authorities say a man trying to board a flight at LaGuardia Airport was arrested after 18 pounds of marijuana was discovered in his checked baggage.

The Port Authority says 55-year-old Kelvin Smith, of the Bronx, was arrested Saturday on charges of criminal possession of marijuana and criminal possession of a controlled substance.

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A Port Authority spokesman says airport screeners became suspicious after they noticed liquid leaking from a checked bag that reeked of marijuana.

The bag was tracked to Smith who was waiting for a flight. Authorities also found 2.8 ounces of crack cocaine in another of his checked bags.

Authorities say court records show that Smith has 41 prior convictions for drug offenses.

It wasn't clear if Smith had a lawyer.