Iranian embassy posts about Samarkand drew a formal protest note.

Tashkent says it values ties with Iran but rejects one-sided readings of Samarkand’s heritage.

The posts answered US Secretary of State Marco Rubio’s Acropolis speech, which recalled Persia’s destruction of the site in 480 BC.

Iran’s embassies in Armenia, China and Zimbabwe deleted posts, but its Islamic Cooperation mission kept its own up.

Tashkent has demanded Iran remove every post it flagged.

How each outlet framed it
The Diplomat
casts the summons as a dispute over history: Iranian posts about Persian civilization and Rubio's Acropolis speech

Sources: The Diplomat