Authorities are investigating a shooting that left two men dead on a Newark street during a violent weekend.

The Essex County Prosecutor's Office says officers responding to a report of a shooting found two men unresponsive on 18th Avenue Sunday night. They were pronounced dead at the scene.

Authorities have identified the victims as 29-year-old Jean Coutac of Union and 18-year-old Luther Thompson Jr. of Newark. No arrests have been made.

The shooting comes after three other shootings over the weekend in the city that wounded four people.

The first shooting was reported around 9:45 p.m. Saturday, after a 15-year-old Newark girl sought treatment at a hospital for a gunshot wound to the leg. A 17-year-old boy was found wounded about two hours later, and two Irvington residents were wounded in a street shooting early Sunday.

It's not clear if any of the shootings were linked, but Newark police tell NJ.com that the incidents may be connected to a recent string of robberies in the area.

All of the wounded victims remained hospitalized Sunday in stable condition, and it didn't appear that any of the injuries were life-threatening.