Diplomats agree to Syria ceasefire, says Kerry

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MUNICH, GERMANY - FEBRUARY 11: Russian Foreign Minister Sergey Lavrov, US Secretary of State John Kerry and UN special envoy on Syria Staffan de Mistura (L-R) hold a press conference following a meeting of the International Syrian Support Group (ISSG) on February 11, 2016 in Munich, Germany. ISSG met in Munich ahead of the International Munich Security Conference to further discuss a peaceful solution in the Syria war. (Photo by Alexandra Beier/Getty Images) *** Local Caption *** Sergey Lavrov; John Kerry; Staffan de Mistura

MUNICH, GERMANY - FEBRUARY 11: Russian Foreign Minister Sergey Lavrov, US Secretary of State John Kerry and UN special envoy on Syria Staffan de Mistura (L-R) hold a press conference following a meeting of the International Syrian Support Group (ISSG) on February 11, 2016 in Munich, Germany. ISSG met in Munich ahead of the International Munich Security Conference to further discuss a peaceful solution in the Syria war. (Photo by Alexandra Beier/Getty Images) *** Local Caption *** Sergey Lavrov; John Kerry; Staffan de Mistura

MUNICH, GERMANY – FEBRUARY 11: Russian Foreign Minister Sergey Lavrov, US Secretary of State John Kerry and UN special envoy on Syria Staffan de Mistura (L-R) hold a press conference following a meeting of the International Syrian Support Group (ISSG) on February 11, 2016 in Munich, Germany. ISSG met in Munich ahead of the International Munich Security Conference to further discuss a peaceful solution in the Syria war. (Photo by Alexandra Beier/Getty Images) *** Local Caption *** Sergey Lavrov; John Kerry; Staffan de Mistura

MUNICH, Germany — U.S. Secretary of State John Kerry says a long-term cease-fire in Syria depends on parties to its civil war engaging in “genuine negotiation.”

Meeting in Munich, diplomats from the U.S., Russia and other powers with interests inSyria’s war agreed early Friday to try to secure a “cessation of hostilities” in a week’s time.

Kerry said that “the objective is to achieve a durable long-term cease-fire at some point in time” but that depends on future negotiations. Kerry acknowledged that differences remain over the future of Syrian President Bashar Assad but said “you have to be at the table to deal with that.”