This photo from fire authorities shows firefighters tending a tree that fell over in the wake of Typhoon Nanmadol in Ulsan, Sept. 19. Yonhap

Strong winds brought on by Typhoon Nanmadol have toppled trees and caused power outages in southeastern Korea, leaving one person injured and hundreds others evacuated, officials said Monday.

With a central atmospheric pressure of 960 hectopascals and a maximum wind speed of 39 meters per second (mps), this year's 14th typhoon was moving north from near Japan's Kagoshima at a speed of 18 kilometers per hour as of 6 a.m., according to the Central Disaster and Safety Countermeasures Headquarters.

Nanmadol is expected to come closest to the southeastern port city of Busan at 10 a.m. before moving out to waters west of Japan's Osaka at 3 p.m.

The typhoon has brought some 50 millimeters of rains in Korea's southeastern Gyeongsang region, including Busan and Ulsan. Busan was experiencing strong winds of up to 33.9 mps.