The warship Carney has wrapped up its unprecedented cruise in the Middle East, where it battled Iran-backed Houthi rebel barrages on a near-daily basis.
U.S. Marines and their Filipino counterparts have staged joint combat drills near southern Taiwan, a flashpoint in the Washington-Beijing military rivalry.
The incident occurred near Scarborough Shoal, one of two hotly disputed areas where confrontations between the two countries have flared since last year.