3 dead, 2 injured in Maryland office park shooting; suspect at large

HARTFORD COUNTY, Md. — Deputies in Harford County, Maryland, are investigating a deadly shooting inside a business complex at Emmorton Business Park.

A representative from the University of Maryland Medical Center confirmed that two patients believed to be linked to the Edgewood shooting incident have been admitted.

In a news conference, deputies said the three of the victims had died. Two others were wounded.

There is now an active manhunt for the alleged shooter.

The FBI says it is treating the shooting as "workplace violence" and agents are assisting local autorities with the search for the suspect.

Schools in the Edgewood, Maryland, area, are on a "modified lockdown," according to Harford County Public Schools.

Edgewood is about a 40-minute drive south of Baltimore.

ABC News' Dee Carden contributed to this report.

Cox Media Group