Darnell Mayberry of The Oklahoman first tweeted the two "had an altercation near the locker rooms. Police investigating." Later, however, Mayberry sent out that "Police captain saying an altercation did not take place and there is no investigation underway."
Both were ejected with 2:05 remaining in the game. As they converged under the basket after the first of two Russell Westbrook free throws, Perkins, Randolph, and Marc Gasol traded words, at which point referee Ken Mauer ejected both Perkins and Randolph. This may have been the continuation of a previous incident:
Looked like Perk elbowed Z-Bo in upper back or head on prev trip and Z-Bo confronted him about it at FT line.— John Hollinger (@johnhollinger) November 15, 2012
Other tweets, however, indicated that something may still have occurred, but the police involved are not commenting further:
@johnhollinger Oh, there was something. We had a NewsOK staffer who heard the yelling and something hitting against walls, doors.— Jenni Carlson (@JenniCarlson_OK) November 15, 2012
I asked an OKC police officer what happened and he smiled and said "no comment."— Royce Young (@dailythunder) November 15, 2012
Perkins offered no help on the incident, declining to speak to reporters in the locker room.
The on-court incident can be seen below: