Burglars tunneled through a concrete wall to gain access to a Los Angeles jewelry store, making off with at least $10 million worth of watches, pendants, gold chains and other merchandise, police said.

Using an abandoned theater next door as cover, the team of thieves tunneled their way to break into a downtown Los Angeles jewelry store.

In a security video of the weekend break-in, a massive drill can be heard carving through the main castlelike wall, making a hole big enough for a person to slip through to enter Love Jewels, Reina de Oro at Broadway and 5th Street.