Lawmakers in the US state of New Jersey have approved a bill abolishing the death penalty.

In a 44-36 vote, the Democrat-run state assembly replaced the death sentence with life in prison without parole.

The bill is expected to be signed into law by Democratic Governor Jon Corzine - an opponent of the death penalty.

The move would make New Jersey the first US state to abolish capital punishment since the US Supreme Court reinstated executions in 1976.