A warrant has been issued for a man who allegedly assaulted another man earlier this month, state police said.

Zachary Glass, 22, no address provided, is wanted on simple assault, terroristic threats, harassment and disorderly conduct charges, according to online court documents.

The charges were filed through district judge Richard Thomas' office, state police said.

Glass allegedly attacked Robert Glass, 45, no address provided, and threw him down a flight of stairs at a home in the first block of Big Rock Drive in Warrington Township about 7:35 p.m. July 2, police said.

Zachary Glass then punched the elder Glass' face multiple times before fleeing, police said.

Police did not say if the two men are related.

Anyone with information about the whereabouts of Zachary Glass is asked to call police at 428-1011.