CENTRAL ISLIP, L. I., Thurs day, Aug. 20 — The predomi nantly black Carleton Park section of this mid‐island com munity held a tenuous grip on calm yesterday following a night of gunfire across barri cades.

The violence erupted after residents vented their frustra tion over alleged neglect by the police of drug traffic in the area by erecting barricades of trash barrels and setting fires across McKinney Street in the middle of Carleton Park.

The police said shots were fired about 11 P. M. at several patrol cars passing through the area. The gunfire ended about 2:30 A.M. yesterday.

The only report of an injury was one by a resident who re ceived a minor head injury caused either by a piece of rock or a pellet.