PARIS-- American pop diva Whitney Houston is in a Paris hospital suffering from nose and throat problems, her entourage said Wednesday.

Houston, 46, canceled the first concert of her European tour in Paris on Tuesday because of a "respiratory infection", and will likely have to miss the second in Manchester, England, scheduled for Thursday, a member of her entourage said.

The source said she was being treated in the Paris hospital for "chronic rhinopharyngitis (a swelling of the mucus membranes in the nose and pharynx) and an infection whose cause has not been identified."

Houston, whose career peaked in the 1990s, has been dogged by ill-health as she attempts a major comeback.

After a seven-year absence from the stage and recording studios, the entertainer, who has also been dogged by drug problems, released a new album "I Look to You" in 2009 which was well-received by the critics.