“The attack on the ship comes as Iranian-backed militias in Iraq are also suspected of numerous drone and missile attacks over the past two weeks.
An attack on a vessel in the Red Sea was reported on Sunday, which was the first attack there in months.
…
The US launched airstrikes on the Houthis in mid-March. The airstrikes ended in April with some kind of a deal, and the Houthis appeared to stop attacks on ships.”
https://www.yahoo.com/news/first-red-sea-naval-attack-190545338.html