A 100 Yuan note is seen in this illustration picture in Beijing March 7, 2011. REUTERS/David Gray/File Photo

HONG KONG (Reuters) - China's offshore yuan CNH=D3 slipped to fresh six-year low on Thursday after the People's Bank of China set a weaker midpoint.

The offshore yuan touched 6.7921 per dollar in morning trade, the weakest level since October 2010 when Reuters data on CNH were available.

The central bank fixed the official yuan midpoint at 6.7736 per dollar, compared to 6.7705 on Wednesday.