HAVANA, June 29 (AP)- Two more North Americans have been seized by the rebels. They were identified as a Canadian sugar mill manager and the American assistant manager of another mill.

The American was identifies as Deymond Elmore, 53, of Haynesville La. He was said to have been seized yesterday near the Ermita sugar mill, ten miles west of Guantanamo.

The Canadian was identifies as Richard Sargent, about 50, of Toronto, manager of the Central Isabel mill, northeast of Guantanamo. Mill officials said he was taken from his home Thursday night. His wife was left in the house.

Walter Wadsworth, manager of the mill where Mr. Elmore worked, said he had word that Mr. Elmore would be released soon.