Karen Swift, a mother-of-four vanished on the Halloween night.

Karen Swift, a mother-of-four from Dyersburg, Tennessee, vanished soon after coming home from a Halloween party and today was revealed to have filed for divorce just three weeks ago.

Karen Swift, 44, was reported missing by friends after she was last seen by her husband at home in Dyersburg, early Sunday morning.

Police found Karen Swift‘s Nissan Murano abandoned less than a mile away from their home with a flat tyre.

Karen Swift’s husband David, whom she was divorcing, told police he last saw his wife at home after she returned from the party to drop off their children.

He said they spoke briefly before he went to bed, but he has not talked to reporters about his wife. Karen Swift filed for divorce on October 1.

The car was found abandoned on the side of a road near her home with a flat tyre, reported the Dyersburg State Gazette.

Karen Swift’s father Gary Johnson, 67, told ABC she could have got a flat tyre and decided to leave the car and walk home when something happened to her.

Dyer County Sheriff Jeff Box told WREG:

“I think the most major thing is to look at is the last known location where we knew she was.”

Karen Swift has two sons in college and two daughters aged seven and nine.

Karen Swift’s cell phone is also missing and police said it was last used at about 5:00 a.m. on Sunday when she accessed the internet on the device.

Police are working with the phone company to pinpoint its last location. DAvid Swift has not been named as a suspect in the case.

Two days ago police searched the area by helicopter and on the ground for any clues as to what may have happened to her.

There are no signs of foul play and Karen Swift’s disappearance is being treated as a missing persons case, Sheriff Box told KAIT.

Janet Ross, a longtime friend of Karen Swift, told KAIT: “It’s like living in a nightmare that you can’t wake up from.

“Karen lives for her children. They were her world. She would not do this to them, if she could prevent it.”

Investigators are also doing a forensic analysis on the car of 5’5” Karen Swift, who has blonde hair and green eyes.