U.S. airlines give China flight plans for defence zone

NEW YORK/TOKYO (Reuters) - U.S. airlines United, American and Delta, have notified Chinese authorities of flight plans when travelling through an air defence zone Beijing has declared over the East China Sea, following U.S. government advice.

The zone has raised tensions, particularly with Japan and South Korea, and is likely to dominate the agenda of a visit to Asia this week of U.S. Vice President Joe Biden. He will travel to Japan, China, and South Korea and try to ease tensions, senior American officials said.