Ngarlejy Yorongar, a leader of the Chadian opposition

Ngarlejy Yorongar, a leader of the Chadian opposition abducted last month by security forces during the rebel attack on N'Djamena, feared that his colleague Ibn Oumar Mahamat Saleh, who disappeared since then has been beaten to death by his jailers.

When he arrived in Paris after fleeing from Chad through Cameroon, Chad deputy testified Thursday that he had seen during his detention.

"Ibn Mahamat Saleh arrived after me. Soldiers which led began to hit him - assault rifle butts, fists, kicks, and so on. They took him in a cell and between 4 and 6 (February), I understand that he is dead - unless a miracle, but I do not believe in a miracle, "he told Radio France Internationale (RFI) shortly after his arrival in the 'Roissy airport in Paris.

Yorongar, Saleh and the former president Lol Mahamat Choua, all opposition leaders, had disappeared on February 3, when government troops of President Idriss Déby fighting rebel forces to regain full control of the capital, N'Djamena .

The Chadian government has indicated since then that Choua was under house arrest as a "prisoner of war".

There is still no news of Saleh and Déby said they did not know his whereabouts.

Yorongar said to journalists that he had come to France to undergo medical examinations, fearful of being poisoned while in custody.

He claimed he had been beaten on the day of his arrest. He was held for 18 days in an undisclosed location, before being released and flee to neighbouring Cameroon, where the French Embassy has granted him a visa.

When asked to say whether he would seek political asylum in France, he replied: "This is not the time."

The french president Nicolas Sarkozy has received Tuesday in Paris Saleh's son, Hicham Oumar Saleh.

Déby has agreed, following a visit by Sarkozy on February 27 in N'Djamena, the establishment of an international commission of inquiry into the disappearances and arrests of opponents