26/05/2016 1:03 AM AEST

20,000 Bees Would Not Leave This Woman's Car Alone

“One theory was that the queen was trapped in my car and the swarm were following her,” she said.

A Welsh woman drove around for two days with an estimated 20,000 bees clinging to her Mitsubishi Outlander, Wales Online reports.

It wasn't until after Carol Howarth parked her car outside a Pembrokeshire pub on Sunday that a passing park ranger reportedly caught sight of the moving mass and contacted two local beekeepers for help.

“It was interesting to see such a natural phenomenon but there were a lot of people around and I was a bit worried of the bees and the people passing by, their children stopping to look at it," said Pembrokeshire Coast National Park ranger Tom Moses, per The Guardian. "It was the middle of a town and outside a pub. I thought that someone might do something stupid.”

The beekeepers were able to collect many of the insects, but when Howarth began driving home, hundreds more started following her again.

"It was incredible, really," Howarth told Wales Online. "I've never seen anything like it. It just goes to show the power of nature."

The last of the bees were finally collected on Monday evening, she said.

Exactly what all the buzz was about, however, remains a bit of a mystery.

"One theory was that the queen was trapped in my car and the swarm were following her," Howarth said. "But they couldn't find the queen anywhere, so I've no idea if that was right."

One of the beekeepers also suggested that there was something sweet inside the vehicle that was attracting them -- possibly a milkshake?