In order to comply with “US sanctions laws”, Instagram started removing posts and suspending accounts that voiced support for Qassem Soleimani, a commander in the Islamic Revolutionary Guard Corps who was killed by a US drone strike on January 3rd.
From the International Federation of Journalists:
… - at least fifteen journalists have reported their profile being suspended. Some profiles have been restored, but posts containing information about Soleimani were deleted permanently.
A Facebook spokesperson told The Hill:
We review content against our policies and our obligations to US sanctions laws, specifically those related to the US government’s designation of the IRGC and its leadership as a terrorist organization
Instagram removed Soleimani’s account less than a year prior after the US government designated the IRGC as a terrorist organization.