Iran's Revolutionary Guards (IRGC) said they attacked a US radar site in Bahrain on 13 November, according to Al Jazeera 1. The claim was also relayed in a post by the open-source monitoring account @Osinttechnical 2.
The IRGC described the action as retaliation for US attacks on an Iranian telecommunications tower in the southern province of Hormozgan, Al Jazeera reported 1. The post by @Osinttechnical gave a slightly different description, saying the IRGC linked the strike to a US airstrike on a communications tower in Sirik 2. The post said the attack took place "tonight" 2.
No casualty figures have been reported. The material available does not include any statement from US or Bahraini authorities confirming or denying that a radar site was hit, and the account of the strike rests on the IRGC's own claim as relayed by the two outlets 12.
Earlier on 12 November, reports emerged of an explosion and a US airstrike in Sirik, in Hormozgan province, near the Shahid Rahbari Naval Base. That report was listed as reported but not fully confirmed. It is the closest match to the IRGC's reference to a strike on a communications tower in Sirik, though the sources do not establish what was hit there 2.
The episode comes amid wider regional tension. Separate reports from 12 November said Israel had ordered military preparations for a possible attack on Iran and that Tehran had threatened retaliation; that report was unconfirmed.