Rescue teams in Malaysia found 37 bodies in a ravine just outside of Kuala Lumpur on Wednesday, after a bus of tourists plummeted into the water, killing most of the passengers on board.

According to the Wall Street Journal, this is one of the most dire accidents Malaysia's roads have seen since 2010.

Assistant director at Kuala Lumpur's Fire and Rescue Department Che Shaari Abdullah said that the rescue operation is still happening.

"We think there were 53 passengers on board, but we are not sure," he stated.

Spokesperson for the Fire Department Christopher Chong claimed that there were too many people in the bus, which had a capacity of 44 passengers.

The bodies of the passengers found are still in the process of being identified. Officials haven't specified which countries the deceased came from, either.

The bus driver was one of the people killed in the accident.

The bus was en route to Genting Highlands from Kuala Lumpur when it swerved off the road on Wednesday, plunging into a ravine near a resort where some of the tourists were staying.

16 passengers sustained injuries, but were rescued from the site of the crash. They were admitted to hospitals in Kuala Lumpur and nearby suburbs, an official told the WSJ.

The resort, which brings in more than 20 million visitors annually, has seen a handful of accidents and injuries, as it is located on the top of a hill that can only be reached by way of a winding road.

In 2010, 28 people died when their tour bus flipped over near Cameron Highlands.