Search ongoing for missing swimmer in Lake Michigan; officials caution public to stay away.

Authorities in Highland Park are searching for a missing swimmer in Lake Michigan near the Openlands Lakeshore Preserve. A bystander tried to help the distressed swimmer but couldn't reach them due to strong currents. The Highland Park Fire Department and police, along with a drone and divers, are conducting the search. One diver was briefly missing but was later found safe. The public is advised to avoid the area.