3:25 p.m. update: Polk County Sheriff Grady Judd said it was a security guard at a Memphis hospital who tipped off police about 4-year-old Rebecca Lewis and West Wild Hogs.

Judd cited the power of social media as key in the rescue of Lewis and capture of Hogs.

"The baby is in the arms of the Memphis Police Department," Judd said.

Judd said the fact that Tennessee eventually issued an Amber Alert about the case also helped. He didn't hide his displeasure Monday morning that an Amber Alert had not been immediately issued Sunday night.

Hogs was previously known as Matthew Clark Pybus. The Amber Alert has been canceled.

2:55 p.m. update: Authorities have rescued Rebecca Lewis, 4, from her alleged abducter, West Wild Hogs. According to the Tenessee Bureau of Investigation, Hogs is now in custody.

Authorities surrounded Hogs at a Memphis hospital after receiving a tip about a suspect vehicle.

The girl and suspect were both in the vehicle, police said.

1:25 p.m. update: The Tennessee Bureau of Investigation posted on Twitter a photo of the suspect, West Wild Hogs, and 4-year-old Rebecca Lewis. The photo was captured at a convenience store off Interstate 24. You can see it above, or please click here.

10:30 a.m. update: Amber Alerts have been issued in Florida, Alabama, Tennessee, Georgia and Kentucky.

9:30 a.m. update: The Amber Alert suspect, West Wild Hogs, was spotted just before 2:30 a.m. Monday in Nashville, Tenn.

Hogs, formerly known as Matthew Clark Pybus, is both depressed and bipolar, according to Polk County Sheriff Grady Judd.

"Our detectives have been chasing them all weekend as if it was their 4-year old child," Judd said at a Monday morning news conference. "Now we need the community to keep their eyes open like it’s their 4-year-old child."

Judd said Hogs is a former truck driver and is comfortable on the interstates. He said Hogs needs to turn the child over to authorities.

"We want that baby back, we want that baby back right now," Judd said. "Just go to a responsible adult and turn her over.”

PREVIOUS STORY: There is a credible sighting of missing 4-year-old girl Rebecca Lewis and the man who is believed to be with her in Tennessee, according to the Polk County Sheriff's Office.

"The Tennessee Bureau of Investigations (TBI) has had a credible report of a possible sighting of (Wild West) Hogs and Rebecca in the area of Cove Lake State Park in Campbell County Tennessee," according to a Polk County Sheriff's Office press release. 

Between 10 p.m. to 11 p.m. Sunday, a park ranger reported seeing a man and girl matching the descriptions of Hogs and Rebecca at the park. 

Multi-state law enforcement agencies in Georgia, Tennessee, Kentucky and Alabama are aware of the sighting. 

The little Lakeland girl went missing Saturday morning at her home in the Lazy Daisy Mobile Home Park.

Her family last saw her at home around 9 a.m. on Oct. 8 by her 16-year-old sister. The girl was wearing a pair of blue shorts.

Also missing was a former family friend, West Wild Hogs, who showed up unexpectedly and spent the night with the family.

Hogs, 31, legally changed his name. He’s formerly known as Matthew Clark Pybus.

On Saturday morning, Hogs allegedly took Rebecca to a nearby McDonald's and then started driving her to Georgia, the press release stated.

However, later in the day at 6:30 p.m., Rebecca and Hogs were last seen in Forsythe, Ga., at a gas station just off Interstate 75.

"She can be seen wearing a pink dress with light colored leggings and he was wearing a light colored t-shirt and blue jeans. He was still driving a 2012 Grey Nissan Versa 4-door with Alabama Handicapped plate: 4JL26 (reported as stolen out of Alabama)," the press release stated.

Heartland Crime Stoppers is offering a $3,000 reward for information leading to the recovery of Rebecca Lewis. Anyone with information who wants to remain anonymous and be eligible for a cash reward is asked to call 1-800-226-8477 or log onto www.heartlandcrimestoppers.com. 

To submit a web tip, go to www.P3Tips.com and follow the prompts.