Andrew was last seen at 9 p.m. Wednesday at a home in the 0-100 block of Dole Avenue in Crystal Lake | Recent photo provided by the Crystal Lake Police Department.

The FBI is assisting Crystal Lake detectives and additional resources are being called in to help search for a 5-year-old boy who vanished from his bed overnight in Crystal Lake.

Crystal Lake Deputy Police Chief Thomas Kotlowski said Thursday afternoon that Andrew “AJ” Freund was last seen at his home in the 0-100 block of Dole Avenue Wednesday at 9 p.m. when his parents put him to bed.

They called police Thursday morning after waking up and not being able to find the boy in the home, police said. Andrew is 3-foot-5, 70 pounds and has short blonde hair. He was last seen wearing a blue Mario sweatshirt and black sweatpants.

Police investigate Thursday morning after a 5-year-old boy went missing from his Crystal Lake home | Photo by Alex Vucha.

Kotlowski said that the Crystal Lake Police Department is still investigating the circumstances surrounding the child’s disappearance and members of the Federal Bureau of Investigation specializing in missing children cases are on scene.

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Search and rescue dogs were called to help search the area.

Kotlowski said that additional resources are responding to the scene. An AMBER alert has not been issued because police cannot confirm if an abduction occurred, Kotlowski added.

“We encourage anyone who may have information relating to this child’s location to contact the Crystal Lake Police Department,” Kotlowski said.

Anyone with information about the boy is asked to call the Crystal Lake Police Department at 815-356-3620. Anonymous tips can also be sent to the Crystal Lake Police Department by texting the word CLPDTIP along with the tip information to 847411 (tip411).