Essex County authorities are investigating an shooting that left a man seriously injured in Irvington overnight.
A male victim arrived in a private vehicle to University Hospital's emergency department at around 2:30 a.m. shot to the back of the head and seriously injured sent police to the 20's block of Union Ave. where a crime scene was established at that location.
Maplewood and Newark Police provided additional coverage as a large crowd formed around the crime scene.
There were no arrest made.