TACOMA, Wash. - The search is on for a 1-year-old boy who was abducted by his uncle on Friday.

Det. Ken Diehmann said Azeal DeGruy was taken from his East Tacoma home around 4:30 p.m. A neighbor saw the boy's uncle, 24-year-old Omari DeGruy, take off with him in a older gray Oldsmobile sedan, investigators said.

Family members have no idea why the man would take his nephew, detectives said, but they fear he may have been using PCP.

"I have no idea. It just came from nowhere," said the boy's father Ashani DeGruy.

The boy's father said his brother is homeless, but spent Thursday night at his home. The two got into a small argument on Friday afternoon, after which his brother disappeared with his son.

"I just got out of the shower and he was gone," he said. "I'm running around in the neighborhood in my towel, looking for him. And a neighbor says that she saw him drive away. I've never known him to own a vehicle, so I don't understand where he got a vehicle from."

Omari DeGruy was last seen driving near 1300 East 62nd Street. Investigators do not know where the two may be headed, but said the uncle does have a valid Oregon ID and a prior address in Portland, Ore.

Omari DeGruy stands 5 feet 11 inches and has a thin build. He was last seen wearing a blue knit cap, worn brown leather jacket and gray shorts or possibly baggy gray sweatpants. Police said the man has a history of mental illness, and should be considered dangerous.

"And we're really concerned because of the fact that he has mental health issues - very severe mental health issues - drug use. And there's a possibility he might leave the state," said police spokesperson Gretchen Aguirre.

"I wouldn't approach him because, I mean, he's unstable. He's unstable, so call police as soon as you can," said Ashani DeGruy.

Azeal DeGruy, who will turn 2 on Oct. 8, is about 2 feet tall and weighs 30 pounds. He was wearing a brown shirt with white sleeves, blue jeans and blue shoes when he was taken, police said. His father said the boy is social and talkative.

Anyone with information on the pair's whereabouts is urged to call 911 immediately. Police can also be reached at (253) 830-6562. Callers should refer to TPD case number 092681004.

"I can't stress enough (that) the mental health issues are our biggest concern right now. We're not sure what his intention is," said Aguirre.

Police said they have not issued an Amber Alert because they only have a vague description of the vehicle.