Oct. 24 (UPI) -- Secretary of State Marco Rubio said that diplomats will help American military officers monitor the cease-fire in Israel and Gaza.

Rubio is visiting Israel as part of a series of visits by American officials that have been in Israel this week.

While touring the new Civil-Military Coordination Center in Kiryat Gat Friday, Rubio made the comments.

"There's going to be ups and downs and twists and turns, but I think we have a lot of reason for healthy optimism about the progress that's being made," The New York Times reported that Rubio said.

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