Quds, Oct. 5, SPA -- Israel has arrested at least 13 Palestinian U.N. employees during the past four years of conflict, the army said on Tuesday. Israel revealed the arrests amid a row with the United Nations agency that cares for Palestinian refugees in the West Bank and Gaza Strip. In New York, U.N spokeswoman Marie Okabe said the world body had no information on the arrests. An Israeli officer earlier said 13 employees of the U.N. Relief and Works Agency (UNRWA) had been arrested and Israel planned to indict them for "suspected links to terrorism". "We have a general concern about UNRWA, about the use of its property and some of its members," said Dallal.