New Delhi, Dec. 20 -- Luke Air Force Base in Arizona lifted a lockdown on Friday morning (December 19) after reports of a possible active shooter prompted a shelter-in-place order, according to local media outlet Fox10.

The all-clear was issued after security forces and local law enforcement found no active threat on the installation.

Luke Air Force Base said the lockdown was initiated just before 10:30 a.m. on December 19 "in response to a report of a potential active shooter incident occurring on the installation."

Officials moved quickly to secure the base as the situation unfolded.

"The 56th Security Forces Squadron and local law enforcement authorities responded immediately and cleared the affected area," the base said in a state...