(CNN) The mother of 2-year-old Noah Tomlin has been arrested in his disappearance days after she said he vanished from his bed in their Virginia home, authorities said.

Noah is presumed dead, and authorities will continue to search for him, Hampton police chief Terry Sult said at a news conference Friday night.

"We will never give up hope," he said.

Julia Tomlin was arrested on suspicion of felony child neglect, Hampton police said. She has not been formally charged and it is unclear whether she has an attorney.

Tomlin initially said her son was last seen when he was put to bed around 1 a.m. Monday at their home in Hampton, according to Sult. She reported him missing that day at 11:36 a.m.

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