A MAN was detained for five days for smoking at a local subway station and refusing to stub out, Shanghai police said yesterday.

A total of 409 subway smokers have been punished this year, out of which 21 were detained, police said on its official microblog.

In the latest case, the detained man, surnamed Yang, was caught smoking by police when he was walking through the passage at Yishan Road Station of Metro lines 3, 4 and 9 on October 24.