Julia Tomlin reported her son, Noah, missing on Monday just before noon. She told police that he was last seen when she put him to bed in their mobile home around 1 a.m. that morning.
The FBI released a missing child poster for Noah and launched what had been described as an intensive search for the boy.
The Hampton Police Department announced Friday that Julia had been arrested in her son's disappearance and charged with three counts of felony child neglect. However, little Noah still has not been found.
"Based on the highly coordinated investigation we believe him to be deceased. This leaves us a little bit speechless, but the search for Noah continues. We’ll never give up hope," Hampton Police Chief Terry L. Sult told reporters.
The investigation is ongoing and in a "critical phase," police said. Sult had said that investigators were looking at a landfill about 10 miles from the family's mobile home but that the search also crossed state lines.
Noah had blond hair and blue eyes. He was last seen wearing a green and white pajama shirt and a diaper.
Anyone with information on Noah or his disappearance is asked to call the Hampton Police Division at 757-727–6111 or the Crime Line at 1–888-LOCK-U-UP.