PITTSBURGH — Police officers won’t be patrolling alone but will double up in response to a statewide FBI alert about potential threats against law enforcement, authorities said.

Public Safety spokeswoman Sonya Toler said officers were directed to partner up on assignments as a precaution after the shooting deaths of two New York City police officers over the weekend.

“It is not uncommon for us to take this course of action when information is received regarding potential threats,” Toler said.

Assistant Chief Maurita Bryant said there were no “active threats” against police, but officers were told to double up and advised “to be vigilant when they are responding to calls, when they are stopping for lunch or a coffee break.”

“Traffic stops, calls of a suspicious nature, high-priority calls, we are asking officers to wait for backup before responding to those calls,” Bryant said.

The FBI alerted Pittsburgh police over the weekend that a source of unknown reliability this month reported threats to kill law enforcement officials and Caucasian civilians. The FBI memo said the source “appeared to have direct access to violent criminal enterprises” in the Pittsburgh area.