Typhoon Krathon made landfall Thursday in Taiwan's major port city of Kaohsiung, bringing torrential rains and fierce winds to the island's south. Trees were brought down by high winds and roads were flooded, prompting the closure of schools and businesses.

Krathon made landfall in the industrial Siaogang district of Kaohsiung around 12:40 p.m., the Central Weather Administration said. It packed maximum sustained winds of 126 km/h with gusts of 162 km/h.

The typhoon was forecast to move slowly north and weaken into a tropical depression by Friday before reaching the capital, Taipei. It was expected to then head across the Taiwan Strait toward the Chinese coast. Winds were strong in Taipei on Thursday, but there was little rain.

Kaohsiung earlier urged its residents to take cover from potentially disastrous winds and rain, which tore down storefronts and flooded car parks but caused no reported loss of life.

"It's very powerful," said Chou Yi-tang, a government official in Siaogang district, home to Kaohsiung's airport. "It's been a long time since such a big storm made a landfall here."

The slow-moving typhoon, which approached Taiwan at a speed of about four km/h, doused eastern and southern parts of the island over the past five days, forcing thousands to evacuate from mountainous or low-lying areas. Two days of closures are believed to have taken a significant toll on the island's high-tech economy that relies heavily on foreign trade.

Gusts and heavy rains pelted empty streets in Kaohsiung, while life in Taipei, 350 kilometres to the north, was only slightly disrupted.

Injuries, deaths reported

Many residents woke up Thursday to mobile phone alerts urging them to take shelter from the potentially dangerous winds. The weather administration posted a Facebook message warning Kaohsiung and Pingtung county residents not to go outside when the eye of the storm passes above their area and the weather calms briefly, because the winds would pick up again afterward.

Weather-related events attributed to Krathon injured at least 123 people around the island, according to Taiwan's fire department. Two people died — one after driving into fallen rocks on the road in the southeastern Taitung county, and the other while trimming tree branches in the city of Hualien. Two others remained missing.

Kaohsiung Mayor Chen Chi-mai, writing on his Facebook page, said there was an "incredible amount" of rain from the slow-moving storm.

"Citizens and friends, please take strict precautions," he said.

A fire at a hospital in Pingtung County killed at least nine people early Thursday. The deaths were attributed to smoke and the cause was under investigation. It was not immediately clear whether the blaze was related to the typhoon.

Thousands were evacuated from areas vulnerable to mudslides and landslides. Almost 40,000 troops were on standby to help with rescue efforts.

A 'weird' storm

Mountainous areas in the island's south have received up to 169 centimetres of rain over the past five days.

China's weather agency said some eastern and southern parts of Taiwan are set to receive extremely heavy rains of up to 40 centimetres over the next 24 hours.

Typhoons often hit Taiwan's east coast facing the Pacific, but Krathon is unusual since it directly hit the west coast and also hovered off the coast before reaching land. Taiwan's media labelled it a "weird" storm.

Kaohsiung officials, in urging residents to be vigilant about the weather, recalled the destruction brought by Typhoon Thelma, which in 1977 badly damaged the city and caused 37 deaths.

Earlier in the week, Typhoon Krathon lashed northern Philippine islands, killing four people and displacing at least 5,000, officials said.

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