Authorities say Jeremiah Grant of Berwick, Maine, took the child, Malachi Grant, from his mother without her consent.

The alert described the child as 34 inches tall and weighing 33 pounds, with brown hair and hazel eyes.

Officials say Grant is from Maine and is listed on the state’s sex offender registry. He is white, about 6-feet tall, with brown hair, brown eyes.

Jeremiah Grant is driving a gray 1991 Honda Accord with New Hampshire plates reading “2854569”.

When he was last seen, Jeremiah Grant was wearing a bright yellow T-shirt and black trousers.

Police would not comment on the relationship between the two Grants. Police say investigators have reason to believe that Grant is mentally unstable and is a danger to himself and others. “So, we’re still working pretty hard on it right now”. His tattoos include the words “Alpha Male” on his neck and “INSANE” on his left forearm.

Also on his left forearm is the inscription “GRANT”.

Anyone who sees the vehicle is asked to call Somersworth police at 692-3131 or their local police department immediately.

Police have announced they seeking the public’s help in tracking down a vehicle after a 1-year-old was abducted from Somersworth on Thursday. He may stay in New Hampshire or possibly travel to Maine, the Amber Alert issued by Somersworth police and New Hampshire State Police said.