SAN FRANCISCO -- Thousands of bees swarmed a truck in San Francisco Thursday afternoon.[br /][br /]It's not clear where they came from.[br /][br /][media ID="[br /]1437815" /][br /][br /]Owner Theron Kabrich couldn't believe his eyes. "Somebody on my staff called me downstairs to say 'there's something out here you've never seen before,'" he said.[br /][Ads /][br /]Kabrich said the bees seemed passive.[br /][br /]"I could walk right through the cloud and the bees would part and they were still looking at that truck," he said.[br /][br /]Once the truck left, the bees congregated on a parking meter.[br /][br /]"Now the bees are lost, you can see them flying around, they don't know where the others went," Kabrich said.[br /][Ads /][br /]Kabrich said a beekeeper came by late Thursday afternoon to collect the bees.[br /][br /]As for the sight of so many of them just outside his business, Kabrich said only in San Francisco. "The most unique city in the world," he said.