The Philippines says that like Vietnam, it opposes a recent Chinese flight test in a newly completed runway on one of seven islands Beijing constructed in the disputed South China Sea.

Department of Foreign Affairs spokesman Charles Jose said Monday the Philippine government was considering protesting China's action, like what Vietnam did, adding that the flight test at Fiery Cross Reef "adds to tension and uncertainties in the region."

Vietnam said last week the flight test violated its sovereignty and demanded that China stop similar actions. China rejected Hanoi's protest and will likely dismiss Manila's concerns too.

Chinese Foreign Ministry spokeswoman Hua Chunying said Saturday the flight test was carried out to determine whether the new airfield in what she said was Chinese territory conformed to civil aviation standards.