‘They keep coming.’ Watch herd of 150 bison surround SUV at Yellowstone National Park

People in an SUV were startled when a massive herd of bison suddenly surrounded their car, video shows.

The bison took over the road and caused a traffic jam near the entrance of Yellowstone National Park, video posted to YouTube on Oct. 31 shows.

“This is crazy,” a woman said in the video. “They keep coming. They could do some serious damage to the car right now.”

The passengers estimated more than 150 bison were surrounding their vehicle during the “once-in-a-lifetime encounter.”

Bison traffic jams aren’t uncommon in the national park. Tourists are often surrounded by huge herds of bison as they travel along park roads.

In August, a bison led traffic through the park when it started slowly walking down the road. It stayed in its lane, video shows.

“Oh my god,” one person said in the video. “Oh, he’s cute.”

A day earlier, a sleepy bison was caught snoozing in the middle of the road while a line of cars waited for the animal to wake up, video shows.

Yellowstone experts said bison in the park are used to cars being around, and they even “seem to know the right-of-way” on the road, according to Yellowstone National Park Trips.

There are more than 4,680 bison living in Yellowstone, and when a herd needs to navigate an area, the road is sometimes the easiest path.

Tourists shouldn’t honk their horns at them, and they should drive slow and give the bison enough space if they meet them on a road, Yellowstone National Park Trips said on its website.

“Be patient for bison to make their way off the road, or just simply go around them,” the website said. “But please save the honking for the city.”

Bison can weigh up to 2,000 pounds. They can also be aggressive and run up to 30 miles per hour, according to the National Park Service. Park visitors should never approach bison.

Five bison among 10 animals killed by Grand Teton drivers in 2 weeks, rangers say

‘Oh he’s cute.’ Massive bison leads traffic in Yellowstone National Park, video shows

Bison injures hiker at Yellowstone National Park, officials say. Here’s what we know