Chief Keef seems to be back to his old ways, after a brief rehab stint (followed by a single called "Fuck Rehab"). Last week we reported on his arrest for DUI, and today another incident has reportedly led to Keef being in police custody. However, it appears that this one may have simply been a case of bad timing.

It's being reported by TMZ & Complex that Keef was taken into custody following a shooting that occurred in Northfield, Illinois. According to TMZ, Keef's lawyer says he was not the shooter, but he happened to be present when shots were fired. The Northfield police say the victim of this shooting is currently in the ICU.

WGN News is reporting that the home where the incident occurred in Northfield possibly belongs to Keef's manager, and they also say someone called in this morning to say "Chief Keef shot me."

The rapper definitely didn't help himself yesterday on Instagram when he posted photos of all his guns, as well as several photos of himself posing with an Uzi and Ballout holding an AK-47. See those photos above.

We'll update you once more details on the situation surface.