Miaoli: The body of a 32-year-old Vietnamese migrant worker who reportedly fell into the Houlong River in Miaoli County on Sunday was found after emergency services resumed their search of the area Monday, local authorities said.

According to Focus Taiwan, the man, surnamed Nguyen, was discovered at around 12:20 p.m., trapped between concrete blocks at a check dam near the border of Miaoli City and Gongguan Township, as reported by the Miaoli County Fire Bureau.

The bureau received a notification around 6 p.m. on Sunday that Nguyen had fallen into the river while barbecuing near the riverbank with four fellow Vietnamese nationals, said Cheng Sheng-feng, head of the bureau's first disaster relief unit.

Nguyen's companions reported that he slipped on a concrete block near the check dam and fell into the river. The bureau swiftly dispatched more than 10 firefighters and volunteer rescuers to the scene, along with a drone camera, Cheng said. However, due to poor visibility and a strong current, the search was called off at night.

Nguyen's body was eventually found near the spot where he fell, and the bureau suggested that he may have been pulled under by a whirlpool and trapped on the riverbed.

Local prosecutors and police are set to take over the investigation to determine the cause of death, the bureau added.