Brazilian architect Niemeyer in grave state, getting worse; hospital says he's now sedated

A Brazilian hospital says 104-year-old architect Oscar Niemeyer is in a grave state and getting worse.

Rio de Janeiro's Samaritano Hospital says in a Wednesday statement that a respiratory infection means the architect continues to require a ventilator and he is now sedated. Niemeyer is also suffering from kidney failure.

Niemeyer was hospitalized on Nov. 2 after a cold that he caught several weeks before led to dehydration, which compromised his kidneys. A bout of bleeding in his digestive tract last month complicated his health.

Niemeyer designed much of Brazil's futuristic capital of Brasilia as well as Rio's Sambadrome, where the city's annual carnival parade is held.