Ji Mi/Shanghai Daily news

Police detained a mine official yesterday after a sudden surge of gas fatally poisoned 24 miners and injured seven at a small colliery in central China's Henan Province the day before.
Police were also searching for four other officials who worked for the Yuzhou City mine.
Five of the injured were listed in serious condition yesterday.
The privately run Xingfa Coal Mine reportedly received clearance from the city's coal industry authority to carry out underground maintenance work on Tuesday morning.
However, mine operators sent a team of 43 men into the shaft to mine coal about 4pm, the Yuzhou City Coal Industry Administration said. Around 10:30pm, gas surged into the shaft.
Rescuers cut off the power supply to the shaft and intensified ventilation to reduce the content of underground gas.
At 1am yesterday, when the gas dropped to a safe level, 12 rescuers went down and brought out 19 trapped miners.
The bodies of the dead were removed from the mine yesterday afternoon, officials said.
Police yesterday detained the mine's director Li Weixing. The colliery produces 60,000 tons of coal a year, according to local authorities.