Police across southern California are searching for three individuals they say broke into a company which services ATMs and made off with over $1 million that had been destined for Los Angeles-area ATMs.

According to media reports, the thieves broke into Commonwealth International's facility through the roof and then, guns drawn, overcame three of the company's employees.

The employees were tied up and left in the emptied vault. Media outlets reported that the thieves had also disabled the firm's security cameras and that the July 7 robbery could have been completed in as little as 20 minutes.