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 France, Romanian airport authorities told AFP on Tuesday.

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

Interim president Ilie Bolojan said that Romania will not send troops to Ukraine but will attend the March 11 defense summit in Paris, announced by the French leader Emmanuel Macron. He also stressed that the country remains a logistics hub,

The Paris chief prosecutor said those arrested are alleged to have helped in the escape of Mohamed Amra in a deadly prison van ambush nine months ago.

The Paris prosecutor said Amra had connections with Marseille’s organized crime syndicates and was suspected of heading a drug trafficking network.

Arrested in Romania and returned to France on Tuesday evening, drug trafficker and fugitive Mohamed Amra has been indicted for 'murder, attempted murder, escape, theft and concealment of theft,' as well as for 'criminal conspiracy.

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.

BUCHAREST, Romania — A notorious French fugitive who staged a deadly escape last year appeared in a Romanian court Sunday after a nine-month international police hunt culminated in his arrest in Bucharest.