A drive-by gunman in north Minneapolis killed a woman with a shot to the head as she sat in a car, authorities said Tuesday.

Arnong Rajvong, 26, of Minneapolis, died Saturday after being shot early that morning near 26th and Washington Avenues N., according to the Hennepin County medical examiner’s office.

Another woman in the car with Rajvong was seriously wounded but is expected to survive, police said. No arrests have been made, and authorities have yet to say what led to the violence.

Shortly after 2 a.m. Saturday, emergency dispatchers received a call from someone in the vehicle, saying that friends had been shot, police said. There were four people in the car, police said.

Rajvong died at Hennepin County Medical Center early Saturday evening after being on life support since arrival, police said.

Rajvong’s brother, Kenny Rajvong, said he was told by a passenger in the vehicle that his sister had been picked up by a man he didn’t know Friday night when she went to a nearby bar, and at the end of the night she decided to leave the bar with her friends rather than the man who picked her up.

“He said something like ‘Why did you go with them?’ And my sister said ‘I’ll go with whoever I want to. I’ll meet up with you guys later,’ ” the brother said.

He was told two men sped up to the car and looked inside before firing toward Arnong Rajvong in the back seat.

Rajvong’s family is planning for her funeral. She leaves behind a 7-year-old son.

“I’m more hurt than angry,” Kenny Rajvong said. “My sister was only 26. She was my baby sister.”