A gas explosion at a department store in Taiwan on Thursday killed four people and injured 26, fire authorities said.

The blast occurred at the food court on the 12th floor of the Shin Kong Mitsukoshi department store in Taichung city, the Taichung Fire Bureau said. The higher floors of the upscale department store were blown out, raining debris on pedestrians below.

Among the dead were two people visiting from Macau, Macao’s Tourism Office confirmed Thursday. Local media reported that they were part of a family of seven who were there for tourism. The other five were also injured are now being treated at local hospitals in Taichung.

Part of the store was under renovation, but it’s not clear if the work was connected to the explosion, Taichung Vice Mayor Cheng Chao-hsin told reporters at the scene. “If it’s found there were illegal actions or parts that violated renovation regulations, it will be dealt with appropriately,” Cheng said.

This image taken from video by Taiwan’s TVBS shows the damaged facade of the Shin Kong Mitsukoshi department store after an explosion in Taichung city in Taiwan on Thursday, Feb 13, 2025. (TVBS via AP)

Dozens of firefighters were deployed to the scene at about 11:30 a.m. Parts of the building’s exterior were damaged and scattered fragments were strewn on the streets.

Taichung Mayor Lu Shiow-yen told reporters at the scene that she felt the shock at her office nearby. She said the fire bureau would focus on a rescue operation first, but an investigation was also underway and officers were checking whether there were other sources of danger.

Taiwan’s President Lai Ching-te said he had asked all relevant government agencies to investigate the cause of the accident.