In one of the largest cash heists in Los Angeles history, thieves made off with as much as $30 million in an Easter Sunday burglary at a San Fernando Valley money storage facility.

In one of the largest cash heists in Los Angeles history, thieves made off with as much as $30 million in an Easter Sunday burglary at a San Fernando Valley money storage facility, an L.A. police official revealed Wednesday.

The burglary occurred Sunday night at an unnamed facility in Sylmar where cash from businesses across the region is handled and stored, according to L.A. Police Department Cmdr. Elaine Morales.

The burglars were able to breach the building as well as the safe where the money was stored, Morales said. Law enforcement sources said the break-in was among the largest burglaries in city history when it comes to cash, and the total surpassed any armored-car heist in the city as well.

Mystery surrounds the break-in.