Prosecutors say JP's Boylston Street Gang had evolved into a high-level drug operation that was largely taken down Monday in a series of raids.

Boston Police and FBI agents executed 16 search and seizure warrants in Boston, Canton and Milton on Monday morning. Fourteen arrests were made, including Rafael “Toribo” Vasquez, 28, of 33 Rockland St., Canton, and other charges may follow, prosecutors said in a statement.

The raids, coming after 11 months of investigation, strike a blow at the Boylston Street gang. That group is perhaps best known in Jamaica Plain for its ongoing feud with the Mozart Street crew — bad blood that caused, among other violent incidents, the shootings and stabbings at Same Old Place in November 2010 that left three men dead.

Here's how Suffolk County District Attorney Dan Conley put it in a press statement about Monday's raids:

"Based on intelligence developed by the Boston Police Youth Violence Strike Force, Special Investigations Unit, and Boston Regional Intelligence Center, we believe many of these individuals are active, driving members of the Boylston street gang, which has been engaged in a deadly feud with its Mozart rivals for almost five years now."

To see photos of the persons arrested Monday, and descriptions of their alleged crimes and roles in the drug network, page through the attached gallery.