Queen Elizabeth II's husband, the Duke of Edinburgh, has been admitted to a hospital with a chest infection, Buckingham Palace said Friday.

A spokeswoman said Prince Philip, 86, was taken to King Edward VII's Hospital in central London for "assessment and treatment for a chest infection."

"His royal highness's program of engagements for the weekend have been canceled," the spokeswoman said on condition of anonymity in line with palace policy.

The spokeswoman said she had no information about his condition. Hospital officials said they would not comment on Philip's condition.

The British Broadcasting Corp. reported that he was admitted to hospital Thursday night.

Philip has been married to the queen since 1947. A member of the Greek royal family, he renounced his royal title when he became a naturalized British subject in 1947.

He joined the Royal Navy in 1939, and saw active service throughout World War II, rising to the rank of Lieutenant. After Elizabeth became queen, Philip gave up his naval career to support her.

He has no constitutional role other than as one of the queen's privy counsellors.

Philip is a great-great-grandchild of Queen Victoria.