RedactedNarrative: Unknown vessel struck a day marker between the hours of 10:00 am and 11:43 am on January 30th, 2015. The marker broke below the waterline and was towed to the US Coast Guard station by the Lee County Marine unit. The wooden day marker was immediately replaced with a can buoy by USCG. No operator or vessel identified at this time. Incident to be made a matter of record.