A Lehigh County man is being sought for an assault incident resulting from a domestic dispute.

Upper Macungie Township police said at 12:39 a.m. Thursday they responded to the 8000 block of Breinigrun Circle, Breinigsville for a domestic assault. On scene officers spoke to a 46-year-old woman who said Gregory Boyer, 50, had threatened to kill her with a steak knife. She also stated he struck her in the head. Boyer had fled the scene before the police arrived.Police said their investigation has led to charges of terroristic threats, simple assault, harassment, and criminal mischief filed against Boyer. A warrant has been secured for his arrest and police ask anyone who knows of his whereabouts to call them at 484-661-5911.