A suspected gangland killer described as France's "public enemy number one" was formally indicted on a slew of organised crime charges including murder before an investigating magistrate in Paris after his extradition from Romania.

A notorious French fugitive who staged a deadly escape that killed two guards last year was extradited Tuesday from Romania to France, days after his arrest in Bucharest ended a nine-month international manhunt.

Two guards were killed when armed assailants helped Mohamed Amra escape from a prison convoy last May, prompting a high-profile search.

French convict Mohamed Amra – on the run since his escape last May in an ambush that left two prison officers dead – was arrested near a shopping center in Bucharest on Saturday.

Since his deadly escape from a prison van last year, Mohamed Amra, known as 'The Fly,' had disappeared. The manhunt, involving around 100 investigators, came to an end in Bucharest on Saturday.

A notorious French fugitive who staged a deadly escape last year has appeared in a Romanian court. A nine-month international police hunt culminated in his arrest in Bucharest.

Mohamed Amra, known as 'The Fly', was extradited to France after being captured in Romania. His escape last year involved the death of two guards, initiating a nine-month manhunt. His arrest concluded with international praise as multiple arrests related to his escape ensued across countries.

Police arrest 10 accomplices of France's most wanted gangland killer, Mohamed Amra, in Bucharest; extradition to France imminent.

A suspected gangland killer described as France's "public enemy number one", who was arrested in Bucharest over the weekend after months of being on the run, has left Romania for