A woman walks through haze as a forest fire burns bushes in Siak Regency, Riau Province, Indonesia on Thursday. The fires in Sumatra have caused record smog in Malaysia and Singapore. Sumatra has stepped up efforts to fight the fires to relieve the conditions. Eight farmers have been arrested for starting the fires. Read more
© The Financial Times Ltd 2014 FT and 'Financial Times' are trademarks of The Financial Times Ltd.