Missing 6-year-old Colorado boy focus of Amber Alert, reward

A bouquet of flowers stands below a rope of crime tape around a small, ice-covered lake Tuesday, Jan. 3, in Aurora, Colo. Divers looking for a 6-year-old boy who apparently wandered away from his family's home on New Year's Eve found the body of a child in the lake Tuesday just before noon. An identification has not been made yet, but authorities notified David Puckett’s family because of suspicions the body is that of the boy, Aurora Police Chief Nick Metz said. (AP Photo/David Zalubowski) (The Associated Press)

Aurora, Colo., Police Department officers string crime scene tape around a small, ice-covered lake Tuesday, Jan. 3, in Aurora, Colo. Divers looking for a 6-year-old boy who apparently wandered away from his family's home on New Year's Eve found the body of a child in the lake Tuesday just before noon. Officials have not identified the body yet. (AP Photo/David Zalubowski) (The Associated Press)

A rope of crime tape is shown around a small, ice-covered lake Tuesday, Jan. 3, 2017, in Aurora, Colo. Divers looking for a 6-year-old boy who apparently wandered away from his family's home on New Year's Eve found the body of a child in the lake Tuesday. An identification has not been made yet, but authorities notified David Puckett’s family because of suspicions the body is that of the boy, Aurora Police Chief Nick Metz said. (AP Photo/David Zalubowski) (The Associated Press)

Police are searching for a 6-year-old boy who is believed to have wandered away from his home in suburban Denver on New Year's Eve, authorities said.

The FBI and other law enforcement agencies helped in the hunt for David Puckett on Monday, going door-to-door within 2.5 miles of his home in Aurora. Bloodhounds and a helicopter have also been used.

An Amber Alert was issued and police said a $10,000 reward was offered.

Aurora police appealed for help to find David as quickly as possible partly because of coming cold weather, with lows expected in the upper teens.

"The public can help by physically searching their homes, automobiles, and any structures on their property where a child may be able to hide," a police statement said.

Authorities have said that foul play isn't suspected, but they said they have contacted registered sex offenders who live in the area and have searched nearby bodies of water.

Monday evening, police disclosed that someone outside the family had seen the boy the day he went missing, but they didn't elaborate.

The FBI told the Denver Post that the agency assigned 50 agents to the case, including one who is highly specialized in missing children searches.

His mother on Sunday issued a tearful appeal for people to help find him and said he was only wearing a light jacket.

Police said David has wandered off before.