ADEN (Reuters).-The Saudi-led coalition in Yemen announced on Friday that it began transporting Yemeni prisoners released from prison under a U.N.-brokered humanitarian initiative.

Although the coalition stated last month that it would release 163 Houthi prisoners in Yemen from the Iran-aligned Houthi militia group, which fought against Saudi Arabia’s Saudi Arabian ally, an official Houthi later claimed the list contained individuals not belonging to the movement.

Bashir Omar from the ICRC and coalition spokesperson in Yemen said that 108 of the detained were being flown by Saudi Arabia from Aden to Yemen where the Saudi-backed government is based. The nine others are going to Sanaa which is held by the Houthi rebels.

A total of two flights were already on their way to Yemen, and another was due.

According to the coalition, 37 of these prisoners were transported by land over the Saudi-Yemen border. Saudi state media said that nine “foreign fighters”, or foreign fighters, were being turned over to diplomatic embassies. They did not give their nationalities.

A Yemeni official claimed that Houthis would not accept people flown to Aden by the Houthis. An earlier month, the Houthis’ head of prisoner affairs said that the Houthis had included “unknown people” on the detainees list.

In March 2015, the coalition intervened against the Houthis in Yemen after they overthrew the internationally-recognized government of Sanaa late in 2014.

Two-month cease-fire was agreed upon by the warring sides. It began April 2, and marked the U.N.’s first significant breakthrough since years to end the conflict that had claimed the lives of tens or thousands of people and created a humanitarian emergency.

A prisoner swap was also discussed by them under the auspices the United Nations. It involved 1,400 Houthi prisoners along with 823 Coalition prisoners.

It was 2020 that saw the last large prisoner exchange. This involved around 1000 detainees.