DARIEN -- A 10-year-old Darien boy and his 7-year-old sister knew that something was wrong. Their babysitter was not responding to them and looked sick. Using quick, and calm, thinking, the boy -- Tucker Stoops -- called 911 after his sister found the babysitter, and police and medical personnel said the Stoops children saved their babysitter's life.

The incident happened in January and on Thursday, police will honor the Stoops children with an award recognizing them for their life-saving experts. The award will be given out at the Darien Library at 5 p.m.

Medical personnel who responded to the scene will be on hand to congratulate the children.

On the dramatic 911 tape, Tucker can be heard calmly telling the dispatcher what the situation is with the babysitter.

"She's making a strange noise and I don't know if she's okay," Tucker told the dispatcher.

The Stoops' babysitter, Naida Maldonado, has worked for the family for the past 10 years. When paramedics arrived on scene they found Maldonado in some type of respiratory distress and began treatment, including intubation.

Maldonado was rushed to the hospital and is expected to make a full recovery.

The boy's mother, Christina Stoops, was told by emergency room doctors that Maldonado likely would have died if just a few more minutes had elapsed.

Maldonado had worked as a police officer in Puerto Rico for 18 years prior to moving to the United States.

Despite the tense situation, Tucker remained calm and collected, giving the dispatcher his name, address and phone number, as well as information about Maldonado.

"Is my babysitter going to die?" Tucker asked the dispatcher.

"When you listen to the chilling audio of the phone call, it is evident that Tucker is nervous but amazingly never loses composure," said Darien police spokesman Jeremiah P. Marron Jr. in a press release. "The Darien Police Communications Center receives calls similar to this on a regular basis, but rarely do the callers remain unruffled. Tucker and Nina Stoops are true heroes and are to be commended."

Police said Tucker did not want to take credit for the life-saving efforts, instead saying it was his sister who found the babysitter unresponsive.