East Lyme — Due to elevated bacterial counts, swimming advisories have been posted at Giants Neck Heights (jetty) and Old Black Point Beach, Ledge Light Health District said Thursday.

Sanitarian Danielle Holmes said in an email that swimming is discouraged at these spots until further notice.

Holmes said these two beaches, as well as Attawan Beach in East Lyme and Rogers Lake in Old Lyme, were above the bacterial action levels set by the state when Ledge Light conducted water sampling on Monday. All other beaches sampled were below the action levels.

The four spots with elevated bacterial counts were resampled Wednesday, Holmes said. Attawan Beach and Rogers Lake then had acceptable levels, while elevated counts remained at Giants Neck Heights (jetty) and Old Black Point Beach.