Police and the FBI are looking for a 5-year-old boy who has been missing since Wednesday from northwest suburban Crystal Lake.

Andrew “AJ” Freund was last seen about 9 p.m. in the first block of Dole Avenue, according to a statement from Crystal Lake police.

His parents last saw him when he went to bed, but were unable to find him when they woke up Thursday morning, police said.

Andrew is described as a 3-foot-5, 70-pound boy with short, blond hair, police said. He was last seen wearing a blue Mario sweatshirt and black sweatpants.

No AMBER alert has been issued because investigators have been unable to confirm whether an abduction occurred, police said.

The FBI said it was assisting in the investigation at the request of Crystal Lake police.

Anyone with information is asked to call police at 815-356-3620 or text an anonymous tip to 847411 with “CLPDTIP” at the beginning of the message.