Amber Alert Issued for Missing Michigan Baby

DEVELOPING: An Amber Alert has been issued for a Michigan baby said to be "in extreme danger."

Police in Ludington, Mich., say 4 1/2-month-old Katherine Shelbie-Elizabeth Phillips was taken Wednesday by a man who since has been located.

The baby -- last seen around 1 p.m. Wednesday -- was allegedly snatched by 21-year-old Sean Michael Phillips, reports.

Police say Phillips was arrested.

Katherine has no hair, has blue eyes and was last seen wearing pink shorts and a pink tank top with black flowers.

Anyone with information on her whereabouts is being urged to call 911 or the Mason-Oceana police hotline at 231-869-5858.

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The Associated Press contributed to this report.