Abdulmalik al-Houthi faces a travel ban, an asset freeze and an arms embargo, in accordance with U.N. Security Council Resolution 2216, decided in April.

Sanctions have also been levied against the son of former Yemeni President Ali Abdullah Saleh, Ahmed Ali Abdullah, who was targeted due to his playing “a key role in facilitating the military expansion of the Houthi movement,” the EU said in a statement.

The move comes as warring factions prepare for June 14 talks in Geneva.

In December, the EU levied a travel ban and asset freeze on Houthi leaders Abdullah Yahya al-Hakim and Abd al-Khaliq al-Houthi as well as former President Saleh.

“The EU slammed the “destabilizing unilateral actions taken by the Houthis and forces loyal to ex-President Saleh and urged their forces to immediately stop the use of violence.”