LEBANON, Ore. -- A Lebanon couple said Tuesday they were the victims of a sick joke after someone used their name to list a baby for sale.

An ad on Craigslist.org said the baby’s mother wasn’t coming back. It also said the posters of the ad were out of “tweak,” or drugs, and would sell the baby for $1,000.

An e-mail address attached to the ad included the name Birdie Avery. But a woman who shares the same name in Lebanon said she doesn’t recognize the baby. She said she and her husband don’t own a computer.

“I don’t know if this is somebody’s really sick April fools joke," said Avery's husband, Rick Avery.

The Averys said they have raised children and grandchildren and would never do such a thing.

“When we find out who did this and who is using my name, I will make sure they get prosecuted to the fullest extent of the law,” Avery said. “This is not funny, it’s malicious and it’s not me.”

The couple said they learned of the ad Tuesday afternoon when a detective contacted them.

The couple is working with Salem and Lebanon police to track down the person responsible for the ad, which has been taken off Craigslist.