Police in Maine are asking the public for help in identifying a young boy whose body was found near a remote road Saturday, MyFoxMaine.com reports. 

The boy's body, which was covered with a blanket, was discovered by a passer-by on Dennett Road off Route 4 in South Berwick. 

Investigators have not been able to identify the child, believed to be between ages 4 and 6. The boy is described as 3 feet 8 inches tall and weighing 45 pounds. 

"Somebody has got to miss this child, (whether) it's the nephew of somebody or the grandson of somebody, to that end, it's been very, very frustrating that we haven't gotten any leads, significant leads, on identifying this child," Lt. Brian McDonough with the Maine State Police said during a press conference Monday. 

There is no missing person's report that matches the description of the child, authorities say, and a computer generated photo of the boy has been released in hopes it will generate leads. Detectives have reportedly received more than 100 tips in the case. 

Police believe the body was left at the scene around 7:30 a.m. Saturday and that the child died about two hours earlier, according to MyFoxMaine.com. Authorities say they are searching for a navy blue Toyota Tacoma pickup truck that a local resident reported seeing in the area that morning. The truck had an extended cab with a cap and white license plates, though the state and number were unclear, the station reports. 

Authorities have not released how the boy died. 

A candlelight vigil is planned for the boy on Tuesday in front of the town hall in South Berwick. 

Click for more on the story from MyFoxMaine.com