Two men were arrested after a pursuit through two counties at speeds topping 100 mph, Los Angeles police said. Officers were seeking other suspects.
Costa Mesa police Sgt. Bryan Glass said three masked gunmen held up a Downey Savings branch, fled in a getaway car driven by a fourth man and then switched to another vehicle.
The second car led police on a chase along freeways from Orange County into Los Angeles County.
In Los Angeles, the chase moved from freeways onto streets as someone in the car threw at least three wads of money out a car window.
The car eventually crashed into a palm tree at a mall, and the four men inside ran off.