followed by one of these
then it could release one of these
or one of these
That's kind of overkill. Not that there's anything wrong with overkill when it comes to terrorists or pirates. Still a nice little SSK, maybe one with air independent propulsion, could be seconded from one of our allies. Since it's in the Indian ocean, and the Pirates are Muslims, maybe the Indians would like to have a go with their Kilos, or since it's former areas of Italian influence, maybe the Italians could be persuaded to conduct a little training exercise in those waters.
Yikes, what a scary looking dude!