An innocent female bystander was among two people shot when an argument turned violent in Harlem on Tuesday afternoon, police and law-enforcement sources said.

Enta Diaw, a street vendor, took a bullet to her left leg around 3:30 p.m. at 215 W. 125th Street, cops and relatives said.

She was rushed to Harlem Hospital and is expected to survive, police said.

The other victim, 20, was shot in the right leg after he and the gunman got into a verbal dispute, police and sources said.

He was taken to St. Luke’s Hospital and also expected to live, police said.

The suspect was still on the loose Tuesday evening, police said.

Diaw’s 19-year-old son, Omar Gaye, said he was “shocked” when his father told him his mother had been shot while working.

“She was selling hats and sunglasses,” Gaye told The Post outside Harlem Hospital. “She called my dad and said she was shot.”

Gaye also decried gun violence in the Big Apple.

 “These are criminal people. We have to stop gun violence,” he said.