Police say 4-month-old Katherine Phillips remains missing, and the man accused of abducting her is refusing to say where the baby is located.
Investigators said Thursday that Sean Phillips, 21, had an argument with Katherine's mother, Ariel Courtland, outside her Ludington home around 1 p.m. Wednesday. When Courtland went inside to get something, Phillips left with Katherine.
Police arrested Phillips a short time later in Scottville, but the baby was not with him.
Ludington Police issued the Amber Alert for Katherine around 10 p.m. Wednesday.