DOVER — Dover residents Elijah Simmons, 19, and Jailen Parker, 18, were arrested on drug and firearms charges Tuesday night, authorities said.

According to Dover police spokesman Sgt. Mark Hoffman, at approximately 6 p.m. officers were conducting surveillance in the 800 block of East Loockerman Street for a drug and firearm investigation. They spotted Mr. Simmons exit a residence and conduct a drug transaction with Mr. Parker.

Mr. Parker was stopped in his vehicle in the area of North DuPont Highway and Rustic Lane following the transaction, police said.

During the stop, police said, Mr. Parker was found to be in possession of 115.9 grams of marijuana and a handgun.

Officers then obtained a search warrant for the residence on East Loockerman Street. During the search, Mr. Simmons was taken into custody without incident, police said, and two handguns were located, along with ammunition, 69 ounces of Promethazine and 584.3 grams of marijuana.

Mr. Parker was charged with possession of a firearm by person prohibited, carrying a concealed deadly weapon, possession of marijuana and drug paraphernalia. He was released on a $6,000 unsecured bond.

Mr. Simmons was charged with possession offenses including firearm by person prohibited, untraceable firearm, intent to deliver Promethazine, intent to deliver marijuana and drug paraphernalia. He was also wanted out of Philadelphia Police for forgery/fraudulent checks. He was committed to Sussex Correctional Institution on a $68,500 cash bond.