A Four State traffic accident is under investigation by the Joplin Police. The accident happened around five o`clock yesterday at Enterprise and Range Line. Police say the driver of Geo Metro was northbound on Range Line. Apparently she lost control and wrecked into a Suburban that was about to make a left turn. The driver of the Geo was transported to St. John`s Hospital and is listed in critical condition. The driver of the Suburban was not seriously injured.