Aviation Security Service (Avsec) has launched an investigation after a two-year-old boy suffered a serious injury at Auckland International Airport on Thursday.
Staff were "extremely surprised" to discover the toddler in the baggage handling system, after he got on a conveyor belt at the check-in counters at about 3pm.
Avsec says its staff moved quickly to rescue him when they first saw him and became aware of the extent of his injury.
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"They comforted the child and administered first aid until medical staff arrived," a statement read.
A full investigation of the incident is now underway, Avsec says.
The child is still in serious condition after the incident. A spokesperson told Newshub he suffered an arm injury and has been taken to hospital.
St John says they were called to the scene just before 3:30 this afternoon, and a child was taken to hospital in a serious but stable condition.
The airport says it is reviewing CCTV footage to work out what has happened.
"Our first concern is for the welfare of the wee boy and his mum," said Anna Cassels-Brown, Auckland Airport's general manager of operations.
"We have also advised WorkSafe NZ this afternoon, and have started our investigation to find out how this happened."
In a tweet, Auckland Airport said its thoughts were with the boy and his family.