By CBS 2 Chicago Staff

CHICAGO (CBS)– A mother is filing a wrongful death lawsuit against the Chicago Park District, after her 19-year-old son drowned last month in Lake Michigan.

Miguel Cisneros died after going swimming off Pratt Pier in Rogers Park last month.

READ MORE: 'I Missed Him The Whole Time': Chicago Family Grateful As Father Recovers From Shooting, Attempted Carjacking

His mother, Maria Diaz, says there were not life rings or enough signs to warn of the dangers.

READ MORE: 1 New York City Police Officer, Suspect Killed In Harlem Shooting

Last week, the Park District said it planned to add life rings at Pratt Pier, and at all of the city’s beaches that have lifeguards.

Only one pier, Pratt Pier, will get life rings.

MORE NEWS: No One In Custody As Investigation Continues Into Hit-And-Run That Killed Retired Police Officer Richard Haljean In Edison Park

Park District officials said they don’t want to give people a false sense of security in areas where they should not be swimming.

CBS 2 Chicago Staff