There was an international delegation of diplomats visiting the refugee camp of Jening (West Bank, occupied Palestine) invited by the Palestine Authority. I think that none of them were killed: https://www.aljazeera.com/news/2025/5/22/governments-condemn-israel-for-firing-towards-diplomats-in-west-bank

https://www.aa.com.tr/en/asia-pacific/japan-lodges-protest-over-gunfire-by-israeli-soldiers-during-diplomats-visit-to-jenin/3575807