Starboard Maritime Intelligence and Bloomberg data showed vessels sailing impossibly straight lines in the region, zig- zagging across the water, or appearing onshore. The glitches — which have affected oil tankers, cargo ships, tugs and fishing boats among others since Friday — increase reliance on radars, compasses and eyesight, boosting the likelihood of collisions.

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.

UKMTO has received multiple reports and monitoring of AIS confirms, that there is increasing electronic interference within the waters of the Gulf and Straits of Hormuz. Whilst the level of electronic interference continues to rise across the wider region, the levels and intensity inside the Gulf are having a significant impact on vessels positional reporting through automated systems (AIS).