A few days ago, CNN reported that a Chinese submarine had collided with the towed sonar array of a USN destroyer.
The AP now reports confirmation of the incident by the Chinese Foreign Ministry. The American side has yet to acknowledge it, according to Stars & Stripes.
Perhaps now would be a good time to start U.S.-Chinese talks on an incidents-at-sea agreement. Before the PLA Navy* sends nuclear weapons out to sea, that is.
*Update: PLA Navy (or PLAN) = People’s Liberation Army Navy.
Update II: The WSJ and AP report that U.S. and Chinese defense officials have agreed to discussions on avoiding military incidents at sea. The talks will start in July.