A towering bridge collapsed in Taiwan on Tuesday, sending a flaming oil tanker truck onto fishing boats in the bay below and trapping at least six people in one of the vessels.

Dramatic video captured the moment the 460-foot-long, single-arch bridge came crashing down in Nanfangao, on Taiwan’s east coast, according to Agence France-Presse.

In the footage, the road gave way and tumbled down onto at least three fishing boats as the tanker truck that was crossing also plunged into the water.

One severely damaged boat was pulled out from under the structure Tuesday afternoon, but two more remained stuck with the tide rising.

“It’s been a long time since it happened and even if the workers survived the impact of the collapse, the air might not last this long,” a local official who spoke on condition of anonymity told AFP.

Fire department chief Hsu Song-yi said rescuers were having difficulty accessing the two remaining vessels, which were submerged in low visibility.

“This is a complicated rescue operation. We were in consultation with structural and building experts as well as ship-building experts, and therefore it has taken us longer. We are doing our best,” he said.

At least a dozen people were injured, including six Filipino and three Indonesian fishing workers, the Taiwanese driver of the truck, and two coast guard personnel, according to Taiwan’s National Fire Agency.

Interior Minister Hsu Kuo-yung told reporters that several people were feared to have been on the bridge when it collapsed.

The weather at the time was sunny, but the collapse occurred hours after a typhoon blew through the island.

The center of Typhoon Mitag passed east of Taiwan late Monday and early Tuesday, but the outer winds gusting up to 85 mph affected the island before the storm moved to the northeast.

The storm injured 12 people, downed trees, damaged vehicles and caused power outages around the island.

Officials would not say if the storm had weakened the bridge or give other details on the potential cause. Government-run Central News Agency said a bridge pier may have collapsed.

Taiwan President Tsai Ing-wen said she hoped all government agencies would do everything possible to save people and “keep the number of deaths and injuries as low as possible,” CNA reported.

Nanfangao Bridge, a tourist attraction in Yilan, was opened in 1998 and was built to replace a lower bridge that prevented large fishing boats from passing underneath.

According to the company that designed the nearly 60-foot-high bridge, MAA Consultants, it’s the only single-span arch bridge in Taiwan supported by cables and the second single arch-cable steel bridge in the world.

Prosecutors have launched a probe into the cause of the incident, Transport Minister Lin Chia-lung said, adding that the bridge was still within its expected 50-year lifespan.

“Recent weather conditions, earthquakes and past assessments of the bridge will be taken into considerations. We will fully cooperate with the investigation,” he told reporters.

Prior serious bridge incidents in Taiwan have mostly been related to typhoons. In 2009, two bridges were badly damaged by Typhoon Morakot, which killed more than 400 people.

With Post wires