China returns seized underwater US drone

A US underwater drone seized by the Chinese navy in the contentious South China Sea has now been returned. The drone was handed over some 92km north-west of Subic Bay in the Philippines, officials said. China seized the vehicle in international waters, in one of the most serious confrontations between the powers in decades. The US said it would continue to "fly, sail, and operate in the South China Sea" where international law allows. "After friendly consultations between the Chinese and US sides, the handover was smoothly completed at midday," China's defence ministry said in a statement on Tuesday. The Pentagon described the incident as inconsistent with international law and codes of conduct between navies at sea, and added that it would continue to investigate. Flying close to Beijing's new South China Sea islands What did Trump say to China's underwater drone seizure? The submarines and rivalries underneath the South China Sea Could Trump end the 'One China' policy? Why was the drone captured? A Chinese Navy ship seized the drone 92km (57 miles) north-west of Subic Bay near the Philippines in the South China Sea on Thursday. According to the Pentagon, the drone, known as an unmanned underwater vehicle (UUV), was being used to carry out scientific research at the time it was captured. China's defence ministry said in a statement that the craft was retrieved and examined to maintain the safety of passing vessels. What have both sides said since? Although an agreement on the return of the drone was eventually reached, it did not come before sharp exchanges and a formal diplomatic complaint by the US. US President-elect Donald Trump earlier accused the Chinese of "stealing". "We should tell China that we don't want the drone they stole back - let them keep it!" he tweeted. China's defence ministry later said that the vessel would be returned in an "appropriate manner", calling the US response "unhelpful". Analysts believe this is likely to stoke US concerns about the growing military build-up by China in the South China Sea. Why is the South China Sea contentious? Media captionRupert Wingfield-Hayes gets a view of a new Chinese runway on Mischief Reef China has claimed territorial rights over most of the South China Sea but its claims are disputed by several nations. China, Vietnam, the Philippines, Taiwan, Malaysia and Brunei all have competing claims. China has backed its expansive claims with island-building and naval patrols. The US says it does not take sides in territorial disputes, but has sent military ships and planes near disputed islands, calling them "freedom of navigation" operations to ensure access to key shipping and air routes. Both sides have accused each other of "militarising" the South China Sea. The Philippines called the drone incident, which took place inside its exclusive economic zone, "very troubling" saying it increased the likelihood of "miscalculations that could lead to open confrontation" very near the Philippine mainland. How will it affect Sino-US relations? Relations between the US and China have been growing increasingly tense, with Mr Trump inflaming the Chinese by speaking on the phone earlier this month with the leader of Taiwan, breaking a long-standing US practice. China has so far been restrained in its official responses to Mr Trump, choosing instead to stress the importance of Sino-US ties.