The United Nations said on Friday that the Houthis who control northern Yemen had detained seven U.N. personnel, and it was suspending all UN staff movement in Houthi-held areas while seeking the detainees' immediate release.

The United Nations (UN) says it has suspended all movement in Houthi-held areas of Yemen after a number of UN personnel were detained by the armed group in the capital, Sanaa. The UN said that it was actively engaging with senior Houthi officials to try to secure the release of all its detained employees.

The United Nations on Friday suspended all travel into areas held by Yemen’s Houthi rebels after more of their staff were detained by the rebels.

In June, the Houthi's detained 11 employees from Yemen as the rebels kept cracking down on areas under their control.