A firefighter washes his face in a haze hit Dumai, in Indonesia's Riau province June 21, 2013. Hospitals in Dumai and Bengkalis in Indonesia's Riau province recorded increases in cases of asthma, lung, eye and skin problems, said health official Arifin Zainal. Free face masks were being distributed and authorities advised residents to stay indoors with their windows shut. REUTERS/Beawiharta (INDONESIA - Tags: ENVIRONMENT DISASTER HEALTH)