Gulf Arab states called on Thursday for an international reconstruction conference for Yemen after any peace deal to end the country’s civil war.

The call came in a statement by Gulf Cooperation Council leaders at the conclusion of their summit meeting in the Saudi capital Riyadh, which was read out by GCC Secretary-General Abdullatif bin Rashid Al Zayani.

Yemeni warring parties are due to gather in Switzerland next week for U.N.-sponsored peace talks to end a civil war that had killed nearly 6,000 people.