The Balkans are hot and humid under heat waves, and temperatures throughout the region exceed 30 degrees Celsius (86 degrees Fahrenheit) for four consecutive days on Wednesday.
Prolonged waves are causing more distress to chronic patients, and authorities are urged to stay indoors and advise them to continue hydration during the hottest hours of the day.
Sarajevo doctors said they are seeing more patients suffering from chronic heart and lung illnesses seeking help due to the heat.
Throughout the region, people are chilling in fountains and trying to evacuate behind local bars and restaurants.
However, many said they were paying attention to the advice of medical professionals and authorities by staying indoors for most of the day.
“I go for a walk in the evening, and that’s it,” said Belgrade’s Snezana Bogdanovich. There, temperatures are expected to reach 35 degrees Celsius (95 degrees Fahrenheit) this week.