Thieves accessed a storage facility and removed around $30m on Easter Sunday in one of the biggest such robberies in LA history, according to local media. The Los Angeles Police Department and FBI are jointly investigating the case. No alarms were tripped and no one knew thieves had entered the facility, located in the San Fernando Valley, where cash from local businesses is processed and stored in a vault. A crew of sophisticated burglars is believed to have come in through the roof, according to local media. Only a small group of people were aware so much cash was held in the building. It took until Monday for the company to realize the money was missing, when facility employees opened the vault. The safe did not show any outward sign of a break-in. Details about how the money was transported away from the facility were not given.