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Saudi Arabia announces 5-day pause in Yemen war, unclear when ceasefire will start

  • U.S. Secretary of State John Kerry, left, shakes hands with Saudi Arabia's King Salman at the Royal Court, in Riyadh, Saudi Arabia, Thursday, May 7, 2015. Kerry sought to secure a pause in Yemen's war after he arrived to Saudi Arabia to meet with the king and other top officials, citing increased shortages of food, fuel and medicine that are adding to a crisis that already has neighboring countries bracing for a mass exodus of refugees. (AP Photo/Andrew Harnik, Pool)

    U.S. Secretary of State John Kerry, left, shakes hands with Saudi Arabia's King Salman at the Royal Court, in Riyadh, Saudi Arabia, Thursday, May 7, 2015. Kerry sought to secure a pause in Yemen's war after he arrived to Saudi Arabia to meet with the king and other top officials, citing increased shortages of food, fuel and medicine that are adding to a crisis that already has neighboring countries bracing for a mass exodus of refugees. (AP Photo/Andrew Harnik, Pool)  (The Associated Press)

  • U.S. Secretary of State John Kerry, left, meets with Saudi Arabia's King Salman at the Royal Court, in Riyadh, Saudi Arabia, Thursday, May 7, 2015. Kerry sought to secure a pause in Yemen's war after he arrived to Saudi Arabia to meet with the king and other top officials, citing increased shortages of food, fuel and medicine that are adding to a crisis that already has neighboring countries bracing for a mass exodus of refugees. (AP Photo/Andrew Harnik, Pool)

    U.S. Secretary of State John Kerry, left, meets with Saudi Arabia's King Salman at the Royal Court, in Riyadh, Saudi Arabia, Thursday, May 7, 2015. Kerry sought to secure a pause in Yemen's war after he arrived to Saudi Arabia to meet with the king and other top officials, citing increased shortages of food, fuel and medicine that are adding to a crisis that already has neighboring countries bracing for a mass exodus of refugees. (AP Photo/Andrew Harnik, Pool)  (The Associated Press)

  • U.S. Secretary of State John Kerry, left, meets with Saudi Arabia's King Salman at the Royal Court, in Riyadh, Saudi Arabia, Thursday, May 7, 2015. Kerry sought to secure a pause in Yemen's war after he arrived to Saudi Arabia to meet with the king and other top officials, citing increased shortages of food, fuel and medicine that are adding to a crisis that already has neighboring countries bracing for a mass exodus of refugees. (AP Photo/Andrew Harnik, Pool)

    U.S. Secretary of State John Kerry, left, meets with Saudi Arabia's King Salman at the Royal Court, in Riyadh, Saudi Arabia, Thursday, May 7, 2015. Kerry sought to secure a pause in Yemen's war after he arrived to Saudi Arabia to meet with the king and other top officials, citing increased shortages of food, fuel and medicine that are adding to a crisis that already has neighboring countries bracing for a mass exodus of refugees. (AP Photo/Andrew Harnik, Pool)  (The Associated Press)

Saudi Arabia has announced a five-day ceasefire in Yemen's war to facilitate aid to civilians in need.

Foreign Minister Adel al-Jubeir made the announcement at a news conference with U.S. Secretary of State John Kerry.

That means the Saudi-led coalition of Arab countries will cease airstrikes in Yemen. Al-Jubeir said he hoped Iran-backed Houthis rebels will halt attacks on the ground.

Aid groups say millions of Yemenis are in need of food, fuel and medicine.

It was unclear when the so-called "humanitarian pause" would start.