China threatens decisive response

military officer said after a bomb from a Myanmar aircraft killed four people.
Myanmar government forces have been battling rebels on the border with China since last month and China has urged Myanmar to "lower the temperature".
But Myanmar denied that any bomb from its forces had fallen in China and said the rebels might have fired into China to create "misunderstanding". The rebels do not have aircraft.
China's air force has dispatched planes to patrol the border and step up protection of its airspace. Beijing has also summoned Myanmar's ambassador to complain about the bombing.
Fan Changlong, who is a deputy head of the powerful Central Military Commission, said Myanmar air force aircraft had crossed the border "many times" recently, China's defense ministry said in a statement late on Saturday.
Myanmar must take strict steps to rein in its armed forces to ensure no repeat of such incidents, he said.
"Otherwise, China's military will take resolute and decisive measures to protect the lives, property and security of China's people," Fan said, without elaborating.
Speaking at his annual news conference yesterday, Chinese Premier Li Keqiang said that the government had the ability and responsibility to "firmly defend" the stability of the border.
Tens of thousands of people, many of them ethnic Chinese, have fled the fighting in northeastern Myanmar's Kokang region into China.
Myanmar has said Chinese mercenaries were fighting with the rebels, and it has urged China to cooperate to prevent "terrorist attacks" being launched from Chinese territory.
China has denied that any attacks into Myanmar have been launched from its territory.