Update (1255ET): 

Earlier reports confirmed that six supertankers abruptly reversed course in the Strait of Hormuz.

Now, new alerts indicate Iranian missiles have been spotted over Doha.

This brings us to GPSJam—a site that publishes daily heat maps of GPS/GNSS disruptions impacting aircraft—which now shows widespread "high-interference" GPS jamming across the critical maritime chokepoint. This suggests further disruptions to maritime navigation in the waterway. 

"Maritime activity slows in Gulf," private data and analytics firm Kpler wrote on X.