One person is dead after a shooting at a shopping plaza in Pennsylvania Monday.

The shooting occurred at Minniti Motorsports in Rostraver around 9 a.m., officials told KDKA.

A man wearing a blue hooded sweatshirt shot at least one person behind the counter of an auto body shop, WPXI reports.

Chuck Stephenson told The Associated Press in a Facebook message that his older brother, 34-year-old Drew Molinari of Belle Vernon, died in the shooting. 

Stephenson says the family is grieving and not willing to comment beyond confirming Molinari's death.

Pennsylvania State Police told Fox News that a manhunt is now under way for the shooter.

Police have responded to at least one report of gunfire a couple of miles from the shooting scene. They did not find the suspect or confirm a link to the killing.

The Associated Press contributed to this report.