Amber Alert Issued For 6-Month-Old

ARLINGTON, Mass. -- An Amber Alert was issued Wednesday for a 6-month-old Arlington boy, who police said was taken by his parents and is in great danger.

Lucas Whalen is white and has hazel eyes and very little hair. He weighs 25 to 30 pounds. The infant is believed to be in danger of serious physical injury, police said.

VIDEO: Amber Alert Issued | Images Of Baby, Parents

Police said that Lucas is in the company of his parents -- Michael Whalen, 42, and Danielle Boyle, 24, both of Arlington. The parents lost custody of their son and refused to turn the child over on Sunday, officials said.

As a result of statements and threats made by Whalen, officials said there is reason to believe Lucas is in danger and his safety is at risk. Arlington Police Department Chief Frederick Ryan said that there is a possibility that Whalen is armed.

"After learning that the court had awarded custody to another family member, the biological parents fled the area and made statements that they were not willing to turn over the child," Ryan said.

The parents and child are believed to be traveling in a rented 2007 Ford Five Hundred, dark gray in color with Massachusetts license plate 49RF83. Police said that it was possible that the couple was traveling toward New Hampshire.

"We are receiving a number of phone calls and we are following up on them," Ryan said.

Whalen is described as being 5 feet 9 inches tall, with a skinny build. He has tattoos on both arms. Boyle is 5 feet 4 inches tall and weights 135 pounds. She has brown hair and brown eyes and has tattoos on her arms, pelvis and ankle.

"The mother is party to the taking of the child, and she is believed to be with Michael Whalen, and he has been making statements and threats," said Massachusetts State Police Trooper Eric Benson. "The nature of the threats and statements were of significant concern to law enforcement and led us to believe that Lucas is in great danger."

Anyone with information was asked to call 911 or the Arlington police at 781-643-1212.