Baltimore police raided 11 homes in South Baltimore late Friday and arrested 30 people on charges of selling cocaine in the area to undercover police officers.
In a raid called "Operation Mask," undercover drug enforcement officers from the Southern District fanned out over a 40-square block area.
After more than 100 officers swarmed into rowhouses, authorities put on a show of force with dozens of police motorcycles roaring through the community and using a Winnebago as a mobile command post.
"Without the cooperation from the community feeding us information, it never would have been a successful operation," said Maj. Kathy Patek, commander of the Southern District.
Police said the neighborhoods bordered by Race, West, Light and McComas streets have been hard hit by drugs in recent months. From Jan. 1 to Sept. 7, police arrested 135 people on drug charges there.
On Wednesday, police said they arrested Lenny Lyle King, 18, of the first block of E. Randall St. and charged him with drug distribution. Major Patek described him as a major distributor of drugs in the community.
The houses raided were in the 600 block of Maude Ave.; the first block of E. Randall St.; the 1400 block of Clarkson St.; the 1100 block of Race St.; the 1000 block of Creek Alley; and the 1300, 1400 and 1500 blocks of S. Hanover St.