SINGAPORE (AFP) - Eric Cray shrugged off an embarrassing error involving the Filipino flag on Wednesday as he clinched his second SEA Games gold in two days in the men's 400m hurdles.

The United States-based runner was sporting an upside-down Filipino flag on his vest, which officially means the country is at war, when he won the 100m in 10.25sec on Tuesday.

But a day later Cray, 26, got both his flag and his performance right as he clocked a Games record of 49.40 to win the hurdles from Quach Cong Lich of Vietnam.

Cray was not the only Filipino to wear an upside-down flag on Tuesday, with 100m women's winner Kayla Richardson also caught out.

It is unclear who was responsible for the error. But Cray said the inverted flags were hurriedly covered up or re-stamped, and he apologised to his fellow countrymen for the mistake at the Games in Singapore.