Mother Byrd Daycare center in Mariners Harbor was closed after Edward Harris drowned in its pool.
The grandmother of Edward Harris, 3, blamed the daycare center for his death.
Divers pulled Ruhshona Kurbonova's body from the Brooklyn lake Saturday afternoon, police said.
Mayor Michael Bloomberg said the mistake might be attributable to a "bureaucratic error."
A 5-year-old boy died Tuesday in a bathtub in the Elliot Houses in Chelsea, police said.
Get Our Daily Breaking News Alert Newsletter
Thank you for signing up!
Would you like to sign up for additional newsletters?
Thank you for signing up for additional newsletters.