A video has surfaced online showing the destruction of another Armenian cemetery by Azerbaijan.

“I have difficulty in understanding why the president of Azerbaijan ordered this vandalism,” Armenia’s ambassador-at-large Edmon Marukyan said Tuesday, February 2.

“May be you know?” Marukyan said, tagging European Council President Charles Michel, U.S. Secretary of State Antony Blinken, EU High Representative Josep Borrell, French President Emmanuel Macron and German Chancellor Olaf Scholz.

Concerns about the preservation of cultural sites in Nagorno-Karabakh are made all the more urgent by the Azerbaijani government’s history of systemically destroying indigenous Armenian heritage—acts of both warfare and historical revisionism. The Azerbaijani government has secretly destroyed a striking number of cultural and religious artifacts in the late 20th century. Within Nakhichevan alone, a historically Armenian enclave in Azerbaijan, Azerbaijani forces destroyed at least 89 medieval churches, 5,840 khachkars (Armenian cross stones) and 22,000 historical tombstones between 1997 and 2006.