A Vice Consul Is Seeking Release of 28 Servicemen Seized Last Week

Special to The New York Times

GUANTANAMO BAY, Cuba, July 1- Rear Admiral R. B. Ellis commandant of the Guantanamo Naval Base, said tonight a United States vice consul was believed to have reached a rendezvous with Cuban rebels.

Admiral Ellis said word he had via informal sources was that Robert Wiecha, vice consul in Santiago, had opened negotiations last night seeking the release of twenty-eight sailors and marines kidnaped last Friday and Saturday.

The Admiral reported that Mr. Wiecha had left this base alone in a jeep Saturday afternoon and that contact had been made last night forty or fifty miles northeast of here. At the same time Consul Park Wollam of Santiago is attempting to negotiate with other rebels who kidnaped United States and Canadian civilians in what are believed to be two separate operations.

Admiral Ellis said the base has 2,500 military personnel, about the same number of United States dependents and about 4,300 Cuban employees. The base has had good relations with the rebels until recently, he added.