After recently braving the Icelandic wilderness on Man vs. Wild, the 30-year-old actor joined actor Michael Pena for a police ride-along in Los Angeles to research their upcoming roles in the cop drama End of Watch.
On Wednesday night, the costars, along with police escort Sgt. Tammy Bowen, witnessed the aftermath of what officers described as a gang shooting at Van Ness Park in the 5700 block of South 2nd Avenue.
According to LAPD officials, the victim -- who has not been identified and refused to cooperate with authorities -- was shot in the lip and arm. He was later treated for non-life-threatening injuries.
No suspects have been identified yet, The Los Angeles Times reports. Gyllenhaal has been on previous ride-alongs in connection with his role research, LAPD officials added.