An explosion Monday at a guard post outside a Libyan courthouse in Benghazi killed one judiciary policeman and seriously wounded another, officials said.

An explosion Monday at a guard post outside a Libyan courthouse in Benghazi killed one judiciary policeman and seriously wounded another, officials said.

A security official said Monday's bomb was placed in a guard post outside a courthouse in central Benghazi by unknown assailants.

The Al-Jala hospital confirmed a policeman had been killed and another admitted to its intensive care unit.

On Sunday a former soldier working in Benghazi's port was shot dead by unknown assailants, said the same sources.

Police were separately investigating the kidnapping on Sunday of the six-year-old child of a Benghazi newspaper editor, which came after threats to blackmail him, said another security official.

The security official said the father told police the child was taken from in front of the house by "four turbaned men".

The government has struggled to rein in the myriad rebel brigades which ended the four-decade-old dictatorship of Gaddafi, who was killed in October 2011.

The former rebels have since formed powerful militias, many of which have refused to lay down their arms or join the formal security forces.