At least four people lost their lives on Monday when the Turkish metropolis of Istanbul was struck by a fierce storm with gale-force winds, the governor's office said.
At least 19 other people were injured, including three seriously, according to the Disaster and Emergency Management Authority (AFAD).
Emergency services are working hard to get help to people in need, the office added.
Since Monday morning, the city-home to over 15 million people-has faced powerful winds which uprooted trees, ripped off rooftops, and even toppled a clock tower.
State weather officials said the wind blew as fast as 129 kilometers per hour (80 miles per hour) in the district of Beylikduzu, which also was pummeled by a short mud rain during the storm.
Some boats docked in Maltepe and Pendik suffered severe damage due to the storm, which also caused a cargo ship to collide with a pier at the Port of Ambarli.
Amid the storm, authorities took precautionary measures, cancelling sea transport and closing the Bosphorus Strait-which connects the Marmara and Black seas-to ship traffic in both directions.
Facing adverse aerial conditions, flag carrier Turkish Airlines sent at least six planes that were unable to land to airports outside Istanbul.
Officials said in a statement that most of Turkey would be affected by strong winds and storms until Tuesday, and urged people to take measures to avoid harm during the bad weather.
In a later statement, the governor's office said that education was suspended for one day due to the storm's continued impact on the city.
Strong winds and storms will continue to batter the city tonight, with wind speeds of up to 90 kph (60 mph) until 6 p.m. (1500GMT) tomorrow, according to weather officials.
It added that motorcycles and electric scooters will not be allowed in traffic from 11 p.m. (2000GMT) Monday to 6 p.m. (1500GMT) Tuesday due to the powerful storm.
