The U.S. Navy says a security team aboard one of its ships fired on a small boat in the Persian Gulf today, killing one person and injuring the other three.
Lieutenant Greg Raelson, a spokesman for the Navy's Bahrain-based 5th Fleet, says the USNS Rappahannock issued a series of warnings.
The 30 foot boat disregarded them and continued racing towards the Navy ship.
Only then, did the USNS Rappahannock resort to lethal force, using a .50-caliber machine gun.
The course of events are standard procedure when a small boat gets too close to a Navy ship.
Similar boats are used for fishing in the region, though Iran's Revolutionary Guard also employs relatively small, fast-moving craft in the Gulf.
Tensions are already elevated in the Gulf, after Iran renewed threats last week to close the strategic Strait of Hormuz--the route for one fifth of the world's oil, in retaliation for tighter sanctions over Tehran's nuclear program.
Stay tuned as 9&10 News brings you the latest details.