The above photograph was released by the Iranian government:

It shows Khalil al-Hmaydane (head of Saudi intelligence) and Saïd Irouani (deputy head of international affairs at the Iranian National Security Council) surrounding Iraqi Prime Minister Moustafa al-Kazimi.

A meeting of consultations was held behind closed doors on 21 April in Iraq. Another one is expected to take place soon, probably between diplomats.

Negotiations are making headway:
A truce was observed in Yemen throughout March and April.
On 7 April, Yemeni President Abd Rabbo Mansour Hadi handed over his powers to an eight-member council after dismissing his vice president.
Saudi Ambassador Walid Boukhari has returned to Lebanon after several months of absence.