The Sanibel Police Department issued a heavy traffic advisory at 4:20 p.m. Monday, Jan. 6, due to an accident on the Sanibel Causeway, which has stopped traffic headed off the island. The Lee County Sheriff’s Office is on the scene and advised it would be 30 to 40 minutes before the accident is cleared. However, traffic is extremely heavy at this time of day and likely to remain that way until this evening. Sanibel Police Chief Bill Dalton urges drivers to avoid the area, if possible, and to use patience to ensure safety. Details of the accident are unknown at this time.