Video gaming: South Korea's new national sport?

E-sports - professionals competing at computer games - are becoming South Korea's national pastime.

The recent launch of the latest iteration of StarCraft has taken place in Seoul's fashionable Gangnam district, complete with red carpet.

Players say they can win prizes of $250,000 (£165,000) plus sponsorship - and there is even talk of the games becoming an Olympic sport.

The BBC's Steve Evans reports from Seoul.