MANILA: The Philippines' decision to ramp up ties with Japan and the United States is a "sovereign choice", its foreign ministry said on Thursday, urging China to "reflect upon its own actions" in the South China Sea.

"The source of tension in our region is well known to all," the foreign affairs department said in a statement.

"It is China's excessive maritime claims and aggressive behaviour, including its militarisation of reclaimed features, that are undermining regional peace and stability and raising tensions," it added.

 - Reuters