BEIJING — China said Sunday that it is up to the United States to improve relations that soured over US arms sales to Taiwan and a meeting between President Barack Obama and the Dalai Lama.

Beijing was incensed by Washington's January announcement of a $6.4 billion weapons package for Taiwan, the self-governing island it considers Chinese territory. Beijing suspended military exchanges and has threatened to retaliate against US aerospace firms involved in the deal.

Beijing protested again when Obama met at the White House with the exiled Tibetan spiritual leader, the Dalai Lama, whom Beijing accuses of seeking independence for the Himalayan region.

"The responsibility for the difficulties in China-US relations does not lie with China," Foreign Minister Yang Jiechi told a news conference held on the sidelines of the annual meeting of the National People's Congress, China's legislature.

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