SMYRNA - Kwamai Johnson, 22, of Smyrna, was arrested on Thursday for firearm and drug offenses, authorities said.

Dover police spokesman Sgt. Mark Hoffman said Mr. Johnson was contacted along with a female passenger during a traffic stop at approximately 8 p.m. in the area of North Governors Avenue and West Division Street. According to police, he was seen placing a handgun underneath the driver’s seat by officers.

Police said Mr. Johnson then fled on foot from officers but was taken into custody in the area of Fulton Street and North Governors Avenue.

During a search of the vehicle, police said, officers also located 50.7 grams of marijuana, 3.5 doses of oxycodone, a digital scale, and the loaded 9mm handgun under the driver’s seat.

Mr. Johnson was charged with possession of firearm by person prohibited (four counts), possession with intent to deliver marijuana, drug paraphernalia, resisting arrest, possession of oxycodone (two counts), possession of marijuana, and violation of probation. He was committed to Sussex Correctional Institution on a $23,900 cash bond.

The female passenger was not charged, Sgt. Hoffman said.