U.N. Secretary-General Antonio Guterres’ personal envoy has arrived in Iran as part of a regional tour aimed at supporting efforts toward a comprehensive and durable resolution to the Iran war, and is also expected to visit key mediator Pakistan, the United Nations said on Wednesday.

Jean Arnault will hear Iran’s perspectives on the way forward and reiterate Guterres’ commitment to supporting a peaceful settlement, according to a U.N. statement.

Arnault also called on all leaders to choose the path of peaceful resolution and the protection of civilians, the statement said.