Paul Walker Crash Cops Warn Fans ... STOP BURNING RUBBER AT DEATH SCENE

12/2/2013 9:24 AM PST

The site where Paul Walker died has become a danger zone ... with some fans paying tribute to the  actor by doing dangerous burn-outs, donuts and other high speed stunts -- and now cops tell us they're cracking down before someone else gets hurt.

In fact, one our of own TMZ producers personally witnessed the exhibitions of speed at the crash site -- people roll up, burn rubber, and peel out in an effort to pay tribute to the late "Fast and the Furious" star.

But cops say it's gotta stop before another tragedy occurs -- and we're told they're now on a mission to cite offenders and impound vehicles in an effort to stop the trend ASAP.