Two people died in Istanbul after severe flooding caused by what Governor Davut Gül described as the city's heaviest rainfall in 84 years, BBC Turkish reported. A 14-year-old boy was electrocuted after stepping into a puddle, and a 34-year-old man slipped and hit his head on the pavement while trying to cross a road. The governorship opened an investigation into the boy's death. Deputy Mayor Nuri Aslan said 595 people had been evacuated to safe areas after becoming trapped, with more than 8,000 workers responding to the flooding. He urged residents to stay vigilant against further heavy rain and storms, particularly overnight, and to use public transport rather than private cars, with metro hours extended to 02:00 local time. Gül told residents to avoid leaving their homes unless absolutely necessary. According to the interior minister, some parts of the city received rainfall equivalent to one seventh of the annual average. Cars were submerged in several districts, including in a flooded shopping-centre car park in Sariyer, while local media reported sections of road collapsing and a river bursting its banks. Flooding was also recorded in Kucukcekmece. The disruption reached air travel, with 46 planes unable to land at Istanbul's airports. Schools were ordered to close on Thursday and Friday, with more rain forecast, and the interior ministry warned of sudden flooding in several other provinces. Turkish media reported that disabled, pregnant and veteran employees would be granted administrative leave on Thursday unless they worked in health, safety or rainwater drainage, along with public-sector women with children under eight. More than 16 million people live in the wider Istanbul metropolitan area.