Shin linked to an earlier post reporting renewed security activity near Khomeini's shrine. The post stated:

Yet again, Intense presence of security forces near Khomeini's shrine
Southern Tehran
Tehran Province, Iran

The report was published through FromIran with a 120-second delay:
https://fromiran.sh1n.org/incidents/3rjCTzr37x9eO6azZV-SZhGH