Haley Pullos, known for her work on "General Hospital," was arrested for a DUI after allegedly causing a major freeway wreck ... one she's lucky to have survived, based on some horrific crash scene photos.
Haley, who plays Molly Lansing-Davis on the long-running soap opera, told Soap Opera Digestlast week that she was taking a break from the show to recover from a car accident -- but according to a police report, Haley left out a few key details.
In the document, obtained by TMZ, cops say Haley was driving on a freeway in Pasadena on April 29 ... when she swerved, flew over the dividing barrier, and into oncoming traffic.
She ended up colliding head-on with another car that was going about 60 mph.
Haley was taken to the hospital ... cops met her there and say she showed clear signs she'd been driving under the influence -- noting the smell of alcohol on her breath, slurred speech, and watery eyes.
She was arrested for felony DUI while still at the hospital ... and cops note she got aggressive and fought hospital staff. They eventually had to sedate her.
The driver of the other car survived but was hospitalized with major injuries.
What's more ... cops tell TMZ Haley was also involved in a hit-and-run traffic collision before her gruesome freeway crash.