(CNN) President Donald Trump phoned his Russian counterpart this week after seeing a map of widespread wildfires in Siberia, according to senior administration officials.

But their conversation also drifted to a discussion of the need for a new US ambassador in Russia, two officials said, since the current envoy Jon Huntsman is expected to depart his post soon.

Huntsman and his wife in the last few months have been on what appears to be a goodbye tour, according to an embassy source, having dinners with fellow diplomats and others as they prepare to leave the country.

Huntsman's wife, Mary Kaye, has posted some of their recent events -- such as a Friday night with the embassy's marine guard members last month and a walk along the Moscow river -- on Instagram.

While Putin and Trump discussed the fact that there will have to be a new ambassador in the coming months with Huntsman's expected departure, the men did not discuss any names of potential replacements.

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