This marks the first phase of a prisoner-release plan reached earlier this year.
Trade minister Liz Truss made the announcement on Tuesday saying the government had complied with a court order that came about after a legal challenge from campaigners and reviewed how the arms were used.
UAE and Saudi Arabia to give $200m in aid to Yemenis of all backgrounds
The lifeline port of Hodeida has been at the centre of the ongoing Yemeni war this year — here are the key events.
Yemen's warring factions have agreed a ceasefire for the vital Red Sea port of Hodeida
The monthly death toll in the strategic port city was up 164% in June-August from the first five months of the year.
All parties in the Yemen conflict have committed war crimes, according to a damning new report by U.N. experts.
In the report, they point to possible crimes on all sides between March 2015 and June this year.
All parties in Yemen conflict have committed war crimes, according to a new report by UN experts.