Oklahoma lawmakers pass bill to outlaw abortion

Lawmakers in the US state of Oklahoma have passed a bill that would make the act of performing an abortion a crime.

Under the bill, a doctor who performs an abortion could be sentenced to up to three years in prison and be barred from practising medicine in the state.

Abortion is legal in the United States and abortion-rights activists say the bill is unconstitutional.

The legislation now heads to Governor Mary Fallin who has previously backed curbs on abortion.

Two abortion clinics remain in Oklahoma after the state recently enacted a number of new regulations on the facilities.