FARMINGTON — State police say a search is under way for a 4-year-old boy who was abducted by his mother during a home invasion and assault at his father’s residence in Farmington.

Investigators say arrest warrants on charges of aggravated criminal trespass and assault are being sought for the 26-year-old mother, Jennifer Woodbury, 27-year-old Nicole Lamphere and an unidentified man in his mid 20s.

Police say the suspects and the missing boy, Zion Lawrence, are believed to be traveling in a 1993 gray Subaru wagon with Maine plate number 4738RE. Anyone with information about them is asked to call Farmington police.

The abduction took place around 3:30 a.m. Monday at the home of Michael Lawrence.