Law enforcement authorities are investigating the deaths of a 1-year-old boy and 3-month-old boy on Saturday at two different homes in Pontiac, three miles apart. Each baby was sleeping with a relative at the time when they were found unresponsive, Carol Hopkins writes in The Oakland Press.

Emergency calls came less than two hours apart, the paper says.

Oakland County Medical Examiner Ljubisa Dragovic has yet to determine the cause of death, the paper reported.

In the first case, authorities responded to a 2 a.m. call at a home on Firelite Lane on Pontiac's north side, where a 3-month-old boy was not breathing.

When authorities arrived, a family member was administering CPR. The child was pronounced dead at McLaren Oakland Hospital.

Authorities learned that the infant was sleeping on a couch with an aunt, who discovered that the boy's lips were blue and he was not breathing. 

At At 3:56 a.m., deputies and  EMS responded to a call from a home on Thorpe where a 1-year-old boy was unresponsive and not breathing. He had been sleeping in a bed with his grandmother and a 6-year-old grandchild.

Read more: The Oakland Press