USA officials are describing the intercept as "unprofessional".
"Although we are still learning about the incident, initial reports of the crew of the United States described it as unprofessional".
Two Chinese fighter jets conducted an "unprofessional" intercept of a U.S. aircraft in worldwide airspace over the East China Sea on Wednesday, according to the U.S. Air Force.
Two Chinese fighter jets intercepted an American plane over the East China Sea on Wednesday, according to a Thursday NBC report. Just $5 a month.
The American plane, a WC-135 Constant Phoenix, collects samples from the air to detect nuclear explosions.
The WC-135 has been regularly deployed on routine missions in Northeast Asia, according to the official.
The HSE says that three hospitals were hit by WannaCry Ransomware
Earlier: Workers across the Republic of Ireland and the North have been placed on high alert over cyber security. The PSNI said some people's systems may already be infecting and waiting to activate after the weekend.
China has not commented on the incident, but it accuses the USA of carrying out reconnaissance flights over Chinese coastal waters and regularly calls on the U.S. to reduce patrols in the area. There were no incidents in 2015 and two in 2016.
China is reportedly suspicious of any us activity in the region, mainly because of the territorial dispute over the South China Sea. While Phoenix was performing a regular mission in global airspace over the East China sea.
In February, a USA aircraft carrier started what Washington described as "routine operations" in the South China Sea, with a fleet of supporting warships.
"Judging by the report, the USA side is again deliberately hyping up the issue of the close surveillance of China by us military aircraft", the ministry said then. In that incident, US authorities said that the Chinese fighter passed near the P-8 "at 90 degrees with its belly towards the P-8 Poseidon ... to make a point of showing its weapons load".
Chinese foreign ministry spokeswoman Hua Chunying declined to comment on the specific incident and referred questions to the defence ministry which has yet to comment. The agreement was meant to prevent unsafe incidents in the airspace near China.