The Gulf of Oman borders Iran, and the tanker was about 14 miles from the coast of Iran. Any reasonable country would have patrol boats out there. I don't know if it was Iranians or Mexicans doing stuff in the boat.
“I don’t know if it was Iranians or Mexicans doing stuff in the boat.”
So you think Mexicans are a possibility?
Rendering assistance in response to a mayday call is what I would expect they will say. It does seem kind of strange that somebody sent out to a tanker that reported a limpet mine attached to the ship would just yank it off and drive away. Of course in that part of the world it might be a common problem to deal with.
Around here the Coast Guard boats deal with the usual maritime problems like sinking boats, boats that have run aground, etc. Maybe removing mines stuck on ships is all in a days work in the Gulf of Oman.