'MythBusters' Stars Evacuated from LAX -- Gunman Reportedly Shot Up Terminal

A gunman reportedly just opened fire inside a terminal at LAX -- and "MythBusters" stars Grant Imahara and Tory Belleci were in the danger zone.

The shooting reportedly occurred around 9:30 AM in Terminal 3. According to reports, a TSA agent was shot at a checkpoint. The suspect was reportedly shot by police and taken into custody.

So far, no reports of other victims.

People inside the terminal were evacuated onto the tarmac -- including Belleci and Imahara -- and Belleci tweeted a photo of the mayhem.

He writes, "Shooters in #LAX That was f***ing terrifying! ... Heard gun shots then everyone starting running for the door." Belleci says he and others now being shuttled away from the terminal.

Imahara tweeted, "I was in the Virgin lounge upstairs. Saw everyone pour out of the terminal onto the tarmac. Then I heard shots fired outside ... Virgin promptly locked the lounge doors. About ten minutes later, LAPD armed with automatic weapons arrived to secure the area."

We just spoke on the phone with Tory ... who described the chaos.