PARIS - The president of the Democratic Republic of Congo's Senate has been admitted to a Paris hospital after being attacked in the French capital, the French Foreign Ministry said.The ministry said on its website it was investigating the New Year's Eve attack on Senate President Leon Kengo Wa Don, while Kinshasa demanded an explanation from French authorities.The ministry said he had been in Paris on a private visit and had not informed French authorities of his arrival. Security forces came to his aid as quickly as possible and he had been admitted to a hospital in the city, it added."An investigation is underway. We have passed this information on to the Congolese authorities, and remain in contact with them," the ministry said. However, it did not comment on his condition or the possible motive of the attack.Congo's President Joseph Kabila was sworn in on Dec. 20 for a new term following his victory in a disputed election.