Thieves got away with $30 million in cash from a money storage facility in Los Angeles by breaking into the building on Easter Sunday and cracking the safe. Now detectives are seeking to unravel the brazen cash heist, reportedly one of the largest on record in Los Angeles.

Police Cmdr. Elaine Morales told The Los Angeles Times, which broke the news of the crime, that the thieves were able to breach the building, as well as the safe where the money was stored. The operators of the business did not discover the massive theft until they opened the vault.

Media reports identified the facility as a location of GardaWorld, a global cash management and security company, in Sylmar. The Canada-based company, which also operates fleets of armored cars, did not immediately respond to a request for comment from The Associated Press.