6:50 AM PT -- 2/2 -- We just got new images -- videos and photos -- from the scene at Liz's home, and it looks like her block of Newport Beach became a war zone.
Several SWAT officers surrounded the property with semi-automatic rifles aimed at the home. Cops also deployed armored vehicles and drones. Despite the presence of heavy artillery, the standoff ended peacefully with police arresting one man in the home ... presumably Liz's ex-BF.
Elizabeth Vargas' home is seeing lots of police activity ... we're told her ex-boyfriend barricaded himself inside after she called cops, and now one person is in custody.
Sources close to the 'RHOC' star tell TMZ ... she’s been having ongoing issues with an ex-boyfriend and called cops Tuesday to report him for possible extortion. We’re told the guy showed up at Liz’s home when police were there and barricaded himself inside.