The UN Relief and Works Agency employees, including teachers and medical staff, "have been demanding a $140 salary raise, and they do not want their annual bonus cut," the official said.
The strike forced UNRWA's 172 schools in Jordan to close, affecting 123,000 pupils.
It comes a week after UNRWA's staff staged a one-day strike, after which the management called for dialogue to resolve outstanding issues.
UNRWA cares for some five million Palestinian refugees in the Middle East, more than two million of them in Jordan.
The agency has made a $344 million emergency appeal this year.
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The strike forced UNRWA's 172 schools in Jordan to close, affecting 123,000 pupils.
It comes a week after UNRWA's staff staged a one-day strike, after which the management called for dialogue to resolve outstanding issues.
UNRWA cares for some five million Palestinian refugees in the Middle East, more than two million of them in Jordan.
The agency has made a $344 million emergency appeal this year.
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