More than 100 wildfires burned across Queensland in eastern Australia on Thursday, the second day of evacuations and rapidly changing conditions affecting thousands of people during a sweltering heat wave.

Conditions improved on Thursday, but residents remain in danger as the heat wave is expected to continue for days, said Annastacia Palaszczuk, Queensland’s premier.

On Wednesday, when there were as many as 190 fires, the government rated the danger “catastrophic” for the first time in the state’s history. Schools were closed and there were scattered reports of property damage, but there were no immediate reports of any deaths.