Published: Oct 06, 2012 5:19 PM EDT

FORT MYERS, Fla. -- A sewage line break that caused more than 100,000 gallons of raw sewage into a back bay near Fort Myers Beach on Friday has Lee County Utilities continuing to keep their no swimming and no fishing advisory in place.  On Saturday, LCU received the first round of sample results for the area near San Carlos Drive.

The results showed fecal coliform levels within the natural background levels of the water and extended the advisory until the second round of samples that were taken Saturday are received on Sunday.

LCU issued a no swimming and no fishing advisory for the next 48-72 hours for all of the bay side on San Carlos Drive from the Coast Guard station to the end of the street. The spill was caused due to a broken 24" force main on Main Street.  The break happened around 8 a.m. Friday near the Mantanzas Pass Bridge.

LCU will give another update on Sunday.