RICHLAND, Wash. - Firefighters are working to contain a fire along the south side of the Yakima River near Queensgate Drive in Richland. The Hills Mobile Home Park is just above the fire, but firefighters have not asked neighbors to evacuate. Right now about 12 acres have burned. Firefighters have contained part of the fire on the north side of the Yakima River, but say it may take a while to get the south side under control as dry brush is fueling the fire. A Fish and Wildlife boat has been called in to help from the river. There is no word on a cause. Firefighters say they will be back out in the next few days to investigate.