Russia’s foreign ministry paid tribute to Alexander Darchiev as an outstanding diplomat and respected colleague, but gave no cause of death. (EPA Images pic)MOSCOW: Russia's ambassador to the US, Alexander Darchiev, has died suddenly at age 66 after one and a half years in the job, Moscow's foreign ministry announced Wednesday.

The ministry called Darchiev an "outstanding diplomat, an experienced leader and a kind colleague". He was appointed in March 2025.

The US State Department said Darchiev died Wednesday in Moscow.

"We offer our condolences to Ambassador Darchiev's family and loved ones. We refer you to the Russian Government for additional details regarding his passing," a State Department spokesman said.