Police in Yiyang, Hunan province, discovered 400,000 yuan in fake banknotes on a coach on Tuesday during a routine highway patrol, Beijing News reported yesterday.

A cache of forged 100-yuan notes was found inside a cardboard box on a coach traveling from Zhanjiang, Guangdong province, to Yiyang, it said.

While carrying out a routine luggage check, police saw a box labeled as containing milk and became suspicious.