WASHINGTON (Reuters) - The FBI on Tuesday will deliver a report to U.S. lawmakers explaining why the law enforcement agency did not recommend charges over Hillary Clinton's use of a personal email server, CNN reported, citing U.S. officials briefed on the matter.

The confidential material, which will include FBI agent memos on their interviews with the U.S. Democratic presidential candidate, is classified and cannot be made public, according to CNN.

(This version of the story has been refiled to fix typo in second paragraph)

(Writing by Susan Heavey, editing by G Crosse)