Government authorities and people on the street did what they could to respond to the dangerous air quality. Schools were shuttered. Some people stayed indoors and wore masks when they ventured outside. The Indonesian navy sent ships to smoke-affected provinces to serve as backup evacuation centers. A spokesperson for Indonesia’s Meteorology, Climatology, and Geophysics Agency called the fires “a crime against humanity.” The mayor of Pekanbaru, a city in Sumatra, issued an order to evacuate infants younger than six months to a town hall that had been outfitted with air filters, cribs, and air conditioners.