"The aircrew deemed the intercept unsafe and unprofessional," U.S. Navy Commander Gary Ross said in a statement Friday. "Operations were able to continue unimpeded. We continue to review the facts of this incident and will convey our concerns through appropriate channels with the Chinese government."
The incident follows a similar event over the East China Sea last week when two Chinese fighter jets intercepted a U.S. sniffer plane. A WC-135 Constant Phoenix aircraft was conducting a routine mission over international airspace when two Sukhoi Su-30 fighter aircraft intercepted it.
Officials called that incident "unprofessional."
More from NBC News:
U.S. to test missile intercept system with North Korea in mind
Why Trump's silence on NATO is a big deal
Hunt for bomber's accomplices hangs over U.K. long weekend
Watch: Two Chinese jets intercept U.S. military aircraft