Minnie Driver was left cowering on the floor of her Los Angeles home on Wednesday (17Apr13) as a Swat team swarmed a property belonging to her neighbour, American Pie star Eddie Kaye Thomas.

Los Angeles Police Department Special Weapons and Tactics (Swat) team officials were deployed to Thomas' Hollywood Hills home to investigate reports a female houseguest had barricaded herself in after threatening the actor with a knife.

Thomas escaped the house before the six-hour stand-off, which resulted in the use of flash grenades and tear gas to drive a woman out of the property, but British actress Driver was trapped in an apartment above as the drama unfolded.

During the ordeal, Driver wrote in a post on Twitter.com, "Armed man has barricaded himself into the house just below mine. Swarming police. My dog is on high alert. No escape."

She then added more information and revealed she was hiding in her apartment with her young son and their dog, writing "It's not an armed man, it's a disgruntled woman. Disgruntled is probably the wrong word... just had five rounds of (tear gas) explosions...

"We are all sitting on the floor in the living room. (My son) Henry has a baseball (bat) and I'm eyeing the wine. Feel sad for this barricaded woman..."