I've heard this from two different sources. Something to keep an eye on. If this turns out not to be true (it's just within the past few hours) just comment and I'll delete the post.

Edit: Not a lib

Edit2: There's also this

Iran Raises Red Flag Of Revenge Tehran- Minutes after Iran’s Supreme Leader promised a “harsh punishment” for Israel in retaliation for assassination of Palestinian leader Ismail Haniyeh in Tehran on Wednesday, a symbolic red flag was hoisted atop a major mosque in the holy city of Qom.