Police are investigating the death of a baby at an Irving day care.
Irving police said day care workers called 911 after finding the 4-month-old boy unresponsive at Kay's Lil Angels in the 1400 block of West Shady Grove shortly before 4 p.m. Monday.
The child, who had been put down for a nap at about 2:30 p.m., was in a room with other napping children, police spokesman Sgt. John Argumaniz said.
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The employee found the baby unconscious and unresponsive during a routine check on the napping children, police said. The day care staff initiated CPR until paramedics arrived.
The baby was taken to a hospital and later pronounced dead.
There were no signs of trauma, police said. The cause of death is not yet known.
NBC 5's Ben Russell contributed to this report.