PARIS — Ingrid Betancourt underwent a battery of medical tests Saturday to check her state of health after six years living in the jungle, the captive of Colombian rebels.

The 46-year-old French-Colombian made no comment when entering or checking out of Val de Grace military hospital in southern Paris. However, her sister Astrid was quoted by France-Info radio as saying that initial test results were "rather reassuring."

The checkup at one of France's most prestigious hospitals came three days after Betancourt and 14 other hostages — three Americans and 11 Colombians — were freed in a spectacular ruse by the Colombian army. Betancourt arrived on Friday in Paris, the home of her two children, to a hero's welcome.

Betancourt had said after her arrival that a medical checkup was on her agenda "because I had lots of health problems throughout those years." The chief presidential doctor, Christophe Fernandez, gave Betancourt an initial checkup on the French plane flying her to Paris.

Betancourt had told France 2 television after being freed that she fell ill with "a series of problems that piled on top of each other. I couldn't nourish myself. I lost weight as you saw. I lost the capacity to move. I was prostrated in my hammock. I had trouble drinking."

At one point, she was reported suffering from Hepatitis B, but that was never confirmed.

On Saturday, Betancourt spent more than six hours at the hospital for the battery of tests.

A line of riot police lined the entry gate of the hospital, and the car carrying Betancourt sped through without stopping.

Getting Betancourt freed became a cause celebre in France and a priority of two presidents, Jacques Chirac and his successor, Nicolas Sarkozy, whom the former hostage profusely thanked.

However, France played no role in the ruse used to free her from the hands of the Revolutionary Armed Forces of Colombia, known as the FARC. Disguised Colombian army intelligence officers rescued the 15 hostages by tricking the rebels into thinking they were preparing for a possible prisoner swap.

Betancourt was running for president in Colombia when she was kidnapped in 2002.

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AP photographer Remy de la Mauviniere in Paris contributed to this report.