Bloomberg reports:
Ship Signal Jamming in Persian Gulf Worsens as Conflict Widens
Navigation signals from more than 900 vessels in the Strait of Hormuz and the Persian Gulf went awry over the weekend, creating confusion in the shipping chokepoint as the fighting between Iran and Israel intensified. ... The Joint Maritime Information Center, an international naval task force monitoring the area, warned on Sunday that there are instances of “extreme jamming” of signals from the Iranian port of Bandar Abbas. ...
Update:
Two oil tankers collided and caught fire on Tuesday near the Strait of Hormuz, where electronic interference has surged during conflict between Iran and Israel, but there were no injuries to crew or spillage reported.
With Iran and Israel firing missiles at each other since Friday, interference has disrupted navigation systems near the vital sea route between Iran and Oman which handles about a fifth of the world's oil. ...