Firefighters help a colleague put on an oxygen mask before extinguishing a fire in a factory at an industrial area in New Delhi, India, June 16, 2024. Over a dozen firefighters and officers in Delhi were interviewed by Reuters, many of whom described working in "doubly" strenuous conditions of extreme heat and numerous fires. Shifts for firefighters are 24 hours long, followed by a day of rest. Senior officers work three full-day shifts at a time and then take a day off. REUTERS/Adnan Abidi