In the background there could be deals with the countries protecting them or with the target directly or a existing deal they had is off now. It may even be unrelated, wasn't worth expending the diplomatic capital before, but they are a connection to someone else more important and so on.
It could also be the targets were captured in a illegal way, no country wants to be diplomatically humiliated and the prosecuting one wouldn't want to disclose their covert ops capabilities.
Announced News is more often only a Press Release, we shouldn't be taking them literally.