Published: Jul 16, 2013 11:39 AM EDT

LAUDERHILL, Fla. (AP) - A toddler is in critical condition after family members found the boy floating in a pool.
    
Lauderhill police said the 1 and ½ year-old boy was playing with his siblings and three adults inside his home Monday night when he opened a sliding glass door and fell into the pool.
    
Authorities said the child's sister found the boy floating face down in the pool unresponsive. It's unclear how long he'd been there. The child's grandfather administered CPR.
    
Police said the toddler is in intensive care but has a strong heartbeat and is breathing on his own.
    
Authorities said they don't expect to file charges in the case, but noted the home didn't have an alarm on the door leading to the pool deck or a safety fence around the pool.

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