THE HAGUE (AFP) - French President Francois Hollande said Monday his partner Valerie Trierweiler is doing "better" and "resting" following a week's stay in hospital after his affair with an actress was made public.

A journalist asked how Ms Trierweiler was during a joint press conference with Dutch Prime Minister Mark Rutte in The Hague, where Mr Hollande is on his first trip abroad since news of the affair broke.

"I thank you for your question," Mr Hollande said.

"Valerie Trierweiler is doing better and resting at the moment at La Lanterne," he said, referring to the presidential residence in Versailles, outside Paris.

"I don't have any other comment to make," he said.

Ms Trierweiler on Saturday left the Paris hospital where she had been admitted on January 10 suffering from nervous exhaustion and low blood pressure for La Lanterne.

Concern had been mounting for Ms Trierweiler, 48, after she fell ill following the revelation that Mr Hollande, 59, had been having an affair with 41-year-old actress Julie Gayet.