Just after midnight, Whittier PD attempted to pull over a sedan in the Whittier area. The driver of the car refused to pull over and a pursuit began. Scanner traffic indicated that the driver might be impaired. He could be seen swerving all over the 605 Freeway as he traveled northbound. Eventually the pursuit driver pulled off the freeway onto Ramona Blvd and came to a stop. He gave up without further incident. An ambulance was called to treat the suspect for unknown injuries. The initial want is believed to be failure to yield.